diff --git a/README.md b/README.md
index 90a067e..fe58ff9 100644
--- a/README.md
+++ b/README.md
@@ -29,5 +29,5 @@ $ drone-yaml verify 642909eb4c3d47e33999235c0598353c samples/simple.yml
 Compile the yaml file:
 
 ```text
-$ drone-yaml compile samples/simple.yml > samples/simple.json
+$ drone-yaml compile samples/simple.yml samples/simple.json
 ```
diff --git a/main.go b/main.go
index 819f201..ecd63b7 100644
--- a/main.go
+++ b/main.go
@@ -201,7 +201,6 @@ var (
 	password   = compile.Flag("netrc-password", "netrc password").PlaceHolder("x-oauth-basic").String()
 	machine    = compile.Flag("netrc-machine", "netrc machine").PlaceHolder("github.com").String()
 	memlimit   = compile.Flag("mem-limit", "memory limit").PlaceHolder("1GB").Bytes()
-	cpulimit   = compile.Flag("cpu-limit", "cpu limit").PlaceHolder("2").Int64()
 )
 
 func runCompile() error {
@@ -269,7 +268,7 @@ func runCompile() error {
 		transform.WithEnviron(*environ),
 		transform.WithEnviron(defaultEnvs()),
 		transform.WithLables(*labels),
-		transform.WithLimits(int64(*memlimit), int64(*cpulimit)),
+		transform.WithLimits(int64(*memlimit), 0),
 		transform.WithNetrc(*machine, *username, *password),
 		transform.WithNetworks(*network),
 		transform.WithProxy(),
diff --git a/yaml/compiler/convert.go b/yaml/compiler/convert.go
index 6c2ae9c..e593ab2 100644
--- a/yaml/compiler/convert.go
+++ b/yaml/compiler/convert.go
@@ -84,7 +84,7 @@ func toResourceObject(from *yaml.ResourceObject) *engine.ResourceObject {
 		return nil
 	}
 	return &engine.ResourceObject{
-		CPU:    int64(from.CPU),
+		// TODO(bradrydzewski) set the CPU resource limit.
 		Memory: int64(from.Memory),
 	}
 }
diff --git a/yaml/compiler/transform/limits.go b/yaml/compiler/transform/limits.go
index a012298..52a6d26 100644
--- a/yaml/compiler/transform/limits.go
+++ b/yaml/compiler/transform/limits.go
@@ -19,7 +19,7 @@ import "github.com/drone/drone-runtime/engine"
 
 // WithLimits is a transform function that applies
 // resource limits to the container processes.
-func WithLimits(memlimit int64, cpulimit int64) func(*engine.Spec) {
+func WithLimits(memlimit, cpulimit int64) func(*engine.Spec) {
 	return func(spec *engine.Spec) {
 		// if no limits are defined exit immediately.
 		if memlimit == 0 && cpulimit == 0 {
@@ -34,12 +34,8 @@ func WithLimits(memlimit int64, cpulimit int64) func(*engine.Spec) {
 			if step.Resources.Limits == nil {
 				step.Resources.Limits = &engine.ResourceObject{}
 			}
-			if memlimit != 0 {
-				step.Resources.Limits.Memory = memlimit
-			}
-			if cpulimit != 0 {
-				step.Resources.Limits.CPU = cpulimit * 1000
-			}
+			step.Resources.Limits.Memory = memlimit
+			step.Resources.Limits.CPU = cpulimit
 		}
 	}
 }
diff --git a/yaml/compiler/transform/limits_test.go b/yaml/compiler/transform/limits_test.go
index 7430d7c..22eb53a 100644
--- a/yaml/compiler/transform/limits_test.go
+++ b/yaml/compiler/transform/limits_test.go
@@ -1,4 +1,3 @@
-// Copyright Jesse Haka.
 // Copyright the Drone Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -36,47 +35,7 @@ func TestWithLimits(t *testing.T) {
 	if got, want := step.Resources.Limits.Memory, int64(1); got != want {
 		t.Errorf("Want memory limit %v, got %v", want, got)
 	}
-	if got, want := step.Resources.Limits.CPU, int64(2000); got != want {
-		t.Errorf("Want cpu limit %v, got %v", want, got)
-	}
-}
-
-func TestWithMemory(t *testing.T) {
-	step := &engine.Step{
-		Metadata: engine.Metadata{
-			UID:  "1",
-			Name: "build",
-		},
-		Docker: &engine.DockerStep{},
-	}
-	spec := &engine.Spec{
-		Steps: []*engine.Step{step},
-	}
-	WithLimits(1, 0)(spec)
-	if got, want := step.Resources.Limits.Memory, int64(1); got != want {
-		t.Errorf("Want memory limit %v, got %v", want, got)
-	}
-	if got, want := step.Resources.Limits.CPU, int64(0); got != want {
-		t.Errorf("Want cpu limit %v, got %v", want, got)
-	}
-}
-
-func TestWithCPU(t *testing.T) {
-	step := &engine.Step{
-		Metadata: engine.Metadata{
-			UID:  "1",
-			Name: "build",
-		},
-		Docker: &engine.DockerStep{},
-	}
-	spec := &engine.Spec{
-		Steps: []*engine.Step{step},
-	}
-	WithLimits(0, 3)(spec)
-	if got, want := step.Resources.Limits.Memory, int64(0); got != want {
-		t.Errorf("Want memory limit %v, got %v", want, got)
-	}
-	if got, want := step.Resources.Limits.CPU, int64(3000); got != want {
+	if got, want := step.Resources.Limits.CPU, int64(2); got != want {
 		t.Errorf("Want cpu limit %v, got %v", want, got)
 	}
 }
diff --git a/yaml/pipeline.go b/yaml/pipeline.go
index 483c8ce..7a2865a 100644
--- a/yaml/pipeline.go
+++ b/yaml/pipeline.go
@@ -97,7 +97,7 @@ type (
 	// ResourceObject describes compute resource
 	// requirements.
 	ResourceObject struct {
-		CPU    MilliSize `json:"cpu"`
+		CPU    string    `json:"cpu"`
 		Memory BytesSize `json:"memory"`
 	}
 
diff --git a/yaml/pretty/testdata/pipeline_resources.yml b/yaml/pretty/testdata/pipeline_resources.yml
index 1233c25..3e2cd3d 100644
--- a/yaml/pretty/testdata/pipeline_resources.yml
+++ b/yaml/pretty/testdata/pipeline_resources.yml
@@ -8,7 +8,7 @@ steps:
       - go build
     resources:
       limits:
-        cpu: 2
+        cpu: 200m
         memory: '100Mi'
       requests:
         cpu: 100m
diff --git a/yaml/pretty/testdata/pipeline_resources.yml.golden b/yaml/pretty/testdata/pipeline_resources.yml.golden
index c592200..52bdac3 100644
--- a/yaml/pretty/testdata/pipeline_resources.yml.golden
+++ b/yaml/pretty/testdata/pipeline_resources.yml.golden
@@ -13,10 +13,10 @@ steps:
   - go build
   resources:
     limits:
-      cpu: 2000
+      cpu: 200m
       memory: 100MiB
     requests:
-      cpu: 100
+      cpu: 100m
       memory: 50MiB
 
 ...
diff --git a/yaml/pretty/util.go b/yaml/pretty/util.go
index 9441f87..aee7448 100644
--- a/yaml/pretty/util.go
+++ b/yaml/pretty/util.go
@@ -22,8 +22,6 @@ func isPrimative(v interface{}) bool {
 		return true
 	case yaml.BytesSize:
 		return true
-	case yaml.MilliSize:
-		return true
 	default:
 		return false
 	}
diff --git a/yaml/pretty/writer.go b/yaml/pretty/writer.go
index 11cc8ff..a137db9 100644
--- a/yaml/pretty/writer.go
+++ b/yaml/pretty/writer.go
@@ -216,8 +216,6 @@ func writeValue(w writer, v interface{}) {
 		writeMappingStr(w, v)
 	case yaml.BytesSize:
 		writeValue(w, v.String())
-	case yaml.MilliSize:
-		writeValue(w, v.String())
 	}
 }
 
diff --git a/yaml/unit.go b/yaml/unit.go
index 84b43c6..16fb9d5 100644
--- a/yaml/unit.go
+++ b/yaml/unit.go
@@ -1,4 +1,3 @@
-// Copyright Jesse Haka.
 // Copyright the Drone Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,9 +15,6 @@
 package yaml
 
 import (
-	"strconv"
-	"strings"
-
 	"github.com/docker/go-units"
 )
 
@@ -53,39 +49,3 @@ func (b *BytesSize) UnmarshalYAML(unmarshal func(interface{}) error) error {
 func (b BytesSize) String() string {
 	return units.BytesSize(float64(b))
 }
-
-// MilliSize will convert cpus to millicpus as int64.
-// for instance "1" will be converted to 1000 and "100m" to 100
-type MilliSize int64
-
-// UnmarshalYAML implements yaml unmarshalling.
-func (m *MilliSize) UnmarshalYAML(unmarshal func(interface{}) error) error {
-	var intType int64
-	if err := unmarshal(&intType); err == nil {
-		*m = MilliSize(intType * 1000)
-		return nil
-	}
-
-	var stringType string
-	if err := unmarshal(&stringType); err != nil {
-		return err
-	}
-	if len(stringType) > 0 {
-		lastChar := string(stringType[len(stringType)-1:])
-		if lastChar == "m" {
-			// convert to int64
-			i, err := strconv.ParseInt(strings.TrimSuffix(stringType, "m"), 10, 64)
-			if err != nil {
-				return err
-			}
-			*m = MilliSize(i)
-		}
-	}
-	return nil
-}
-
-// String returns a human-readable cpu millis,
-// (eg. "1000", "10").
-func (m MilliSize) String() string {
-	return strconv.FormatInt(int64(m), 10)
-}
diff --git a/yaml/unit_test.go b/yaml/unit_test.go
index 0e600aa..aa944ab 100644
--- a/yaml/unit_test.go
+++ b/yaml/unit_test.go
@@ -59,42 +59,3 @@ func TestBytesSize(t *testing.T) {
 		}
 	}
 }
-
-func TestMilliSize(t *testing.T) {
-	tests := []struct {
-		yaml string
-		size int64
-		text string
-	}{
-		{
-			yaml: "100m",
-			size: 100,
-			text: "100",
-		},
-		{
-			yaml: "1",
-			size: 1000,
-			text: "1000",
-		},
-		{
-			yaml: "0m",
-			size: 0,
-			text: "0",
-		},
-	}
-	for _, test := range tests {
-		in := []byte(test.yaml)
-		out := MilliSize(0)
-		err := yaml.Unmarshal(in, &out)
-		if err != nil {
-			t.Error(err)
-			return
-		}
-		if got, want := int64(out), test.size; got != want {
-			t.Errorf("Want millis %d, got %d", want, got)
-		}
-		if got, want := out.String(), test.text; got != want {
-			t.Errorf("Want text %s, got %s", want, got)
-		}
-	}
-}