diff --git a/internal/builder/builder.go b/internal/builder/builder.go
index f53567e29..06ee3fa52 100644
--- a/internal/builder/builder.go
+++ b/internal/builder/builder.go
@@ -102,7 +102,6 @@ type moduleWithDiffID struct {
 type BuilderOption func(*options) error
 
 type options struct {
-	runImage  string
 	toFlatten buildpack.FlattenModuleInfos
 	labels    map[string]string
 	runImage  string
@@ -115,13 +114,6 @@ func WithRunImage(name string) BuilderOption {
 	}
 }
 
-func WithRunImage(name string) BuilderOption {
-	return func(o *options) error {
-		o.runImage = name
-		return nil
-	}
-}
-
 // FromImage constructs a builder from a builder image
 func FromImage(img imgutil.Image) (*Builder, error) {
 	return constructBuilder(img, "", true)