diff --git a/inc/thorvg.h b/inc/thorvg.h
index 40916685..fb26ce13 100644
--- a/inc/thorvg.h
+++ b/inc/thorvg.h
@@ -1648,8 +1648,8 @@ public:
      * @param[in] no The index of the animation frame to be displayed. The index should be less than the totalFrame().
      *
      * @retval Result::Success Successfully set the frame.
-     * @retval Result::InsufficientCondition No animatable data loaded from the Picture.
-     * @retval Result::NonSupport The Picture data does not support animations.
+     * @retval Result::InsufficientCondition if the given @p no is the same as the current frame value.
+     * @retval Result::NonSupport The current Picture data does not support animations.
      *
      * @see totalFrame()
      *
diff --git a/src/bindings/wasm/tvgWasm.cpp b/src/bindings/wasm/tvgWasm.cpp
index e372e436..3b1d54b0 100644
--- a/src/bindings/wasm/tvgWasm.cpp
+++ b/src/bindings/wasm/tvgWasm.cpp
@@ -152,13 +152,9 @@ public:
     bool frame(float no)
     {
         if (!canvas || !animation) return false;
-        if (animation->frame(no) != Result::Success) {
-            errorMsg = "frame() fail";
-            return false;
+        if (animation->frame(no) == Result::Success) {
+            updated = true;
         }
-
-        updated = true;
-
         return true;
     }