diff --git a/android/bazel.go b/android/bazel.go
index 1bfbdec..0d2c777 100644
--- a/android/bazel.go
+++ b/android/bazel.go
@@ -255,7 +255,7 @@
 	if b.ShouldConvertWithBp2build(ctx) {
 		return bp2buildModuleLabel(ctx, module)
 	}
-	panic(fmt.Errorf("requested non-existent label for module ", module.Name()))
+	panic(fmt.Errorf("requested non-existent label for module %s", module.Name()))
 }
 
 type Bp2BuildConversionAllowlist struct {