diff --git a/pkg/build/api/types.go b/pkg/build/api/types.go
index dc4b3b463f25..49bc7e59e3e9 100644
--- a/pkg/build/api/types.go
+++ b/pkg/build/api/types.go
@@ -205,8 +205,8 @@ type STIBuildStrategy struct {
 	// Scripts is the location of STI scripts
 	Scripts string `json:"scripts,omitempty"`
 
-	// Clean flag forces the STI build to not do incremental builds if true.
-	Clean bool `json:"clean,omitempty"`
+	// Incremental flag forces the STI build to do incremental builds if true.
+	Incremental bool `json:"incremental,omitempty"`
 }
 
 // BuildOutput is input to a build strategy and describes the Docker image that the strategy
diff --git a/pkg/build/api/v1beta1/conversion.go b/pkg/build/api/v1beta1/conversion.go
index 446e3e96279e..98019e625f20 100644
--- a/pkg/build/api/v1beta1/conversion.go
+++ b/pkg/build/api/v1beta1/conversion.go
@@ -54,13 +54,13 @@ func init() {
 			out.BuilderImage = in.Image
 			out.Image = in.Image
 			out.Scripts = in.Scripts
-			out.Clean = in.Clean
+			out.Clean = !in.Incremental
 			s.Convert(&in.Env, &out.Env, 0)
 			return nil
 		},
 		func(in *STIBuildStrategy, out *newer.STIBuildStrategy, s conversion.Scope) error {
 			out.Scripts = in.Scripts
-			out.Clean = in.Clean
+			out.Incremental = !in.Clean
 			s.Convert(&in.Env, &out.Env, 0)
 			if len(in.Image) != 0 {
 				out.Image = in.Image
diff --git a/pkg/build/api/v1beta1/conversion_test.go b/pkg/build/api/v1beta1/conversion_test.go
index fa068c2dcc85..f91126a1d9f9 100644
--- a/pkg/build/api/v1beta1/conversion_test.go
+++ b/pkg/build/api/v1beta1/conversion_test.go
@@ -16,7 +16,9 @@ func TestSTIBuildStrategyConversion(t *testing.T) {
 	var actual newer.STIBuildStrategy
 	oldVersion := current.STIBuildStrategy{
 		BuilderImage: "testimage",
+		Clean:        true,
 	}
+
 	err := Convert(&oldVersion, &actual)
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
@@ -24,6 +26,9 @@ func TestSTIBuildStrategyConversion(t *testing.T) {
 	if actual.Image != oldVersion.BuilderImage {
 		t.Errorf("expected %v, actual %v", oldVersion.BuilderImage, actual.Image)
 	}
+	if actual.Incremental == oldVersion.Clean {
+		t.Errorf("expected %v, actual %v", oldVersion.Clean, actual.Incremental)
+	}
 }
 
 func TestImageChangeTriggerFromRename(t *testing.T) {
diff --git a/pkg/build/api/v1beta1/types.go b/pkg/build/api/v1beta1/types.go
index 577f9a05f17f..9c1d2ea25ccd 100644
--- a/pkg/build/api/v1beta1/types.go
+++ b/pkg/build/api/v1beta1/types.go
@@ -205,6 +205,7 @@ type STIBuildStrategy struct {
 	Scripts string `json:"scripts,omitempty"`
 
 	// Clean flag forces the STI build to not do incremental builds if true.
+	// Deprecated: in v1beta2 it will be replaced by Incremental.
 	Clean bool `json:"clean,omitempty"`
 }
 
diff --git a/pkg/build/builder/sti.go b/pkg/build/builder/sti.go
index 5fb8d2821d36..06ff90c1a53d 100644
--- a/pkg/build/builder/sti.go
+++ b/pkg/build/builder/sti.go
@@ -40,7 +40,7 @@ func (s *STIBuilder) Build() error {
 		Tag:          tag,
 		ScriptsURL:   s.build.Parameters.Strategy.STIStrategy.Scripts,
 		Environment:  getBuildEnvVars(s.build),
-		Clean:        s.build.Parameters.Strategy.STIStrategy.Clean,
+		Clean:        !s.build.Parameters.Strategy.STIStrategy.Incremental,
 	}
 	if s.build.Parameters.Revision != nil && s.build.Parameters.Revision.Git != nil &&
 		s.build.Parameters.Revision.Git.Commit != "" {
diff --git a/pkg/cmd/cli/describe/describer.go b/pkg/cmd/cli/describe/describer.go
index 7f7206ef2480..b21c47e4b01f 100644
--- a/pkg/cmd/cli/describe/describer.go
+++ b/pkg/cmd/cli/describe/describer.go
@@ -76,8 +76,8 @@ func (d *BuildDescriber) DescribeParameters(p buildapi.BuildParameters, out *tab
 		}
 	case buildapi.STIBuildStrategyType:
 		formatString(out, "Builder Image", p.Strategy.STIStrategy.Image)
-		if p.Strategy.STIStrategy.Clean {
-			formatString(out, "Clean Build", "yes")
+		if p.Strategy.STIStrategy.Incremental {
+			formatString(out, "Incremental Build", "yes")
 		}
 	case buildapi.CustomBuildStrategyType:
 		formatString(out, "Builder Image", p.Strategy.CustomStrategy.Image)