diff --git a/pkg/chart/v2/util/values.go b/pkg/chart/v2/util/values.go
index 11347152f..5549580ce 100644
--- a/pkg/chart/v2/util/values.go
+++ b/pkg/chart/v2/util/values.go
@@ -189,7 +189,7 @@ func isNonEmptyTable(val interface{}) bool {
 }
 
 func isNonEmptyString(val interface{}) bool {
-	valueString := fmt.Sprintf("%s", val)
+	valueString := fmt.Sprintf("%v", val)
 	return valueString != ""
 }