diff --git a/pkg/ddc/base/runtime.go b/pkg/ddc/base/runtime.go
index d82af8ffa2d..c4a66a3df29 100644
--- a/pkg/ddc/base/runtime.go
+++ b/pkg/ddc/base/runtime.go
@@ -317,6 +317,7 @@ func (info *RuntimeInfo) IsPlacementModeSet() bool {
 	return info.placementMode != nil
 }
 
+// GetPlacementModeWithDefault returns the configured placement mode, or the default value if it is not set.
 func (info *RuntimeInfo) GetPlacementModeWithDefault(defaultMode datav1alpha1.PlacementMode) datav1alpha1.PlacementMode {
 	if !info.IsPlacementModeSet() || info.placementMode == nil {
 		return defaultMode