diff --git a/src/renderer/tvgPaint.cpp b/src/renderer/tvgPaint.cpp
index 1ba7ec95..5fde1740 100644
--- a/src/renderer/tvgPaint.cpp
+++ b/src/renderer/tvgPaint.cpp
@@ -451,7 +451,10 @@ uint32_t Paint::identifier() const noexcept
 
 Result Paint::blend(BlendMethod method) const noexcept
 {
-    pImpl->blendMethod = method;
+    if (pImpl->blendMethod != method) {
+        pImpl->blendMethod = method;
+        pImpl->renderFlag |= RenderUpdateFlag::Blend;
+    }
 
     return Result::Success;
 }
diff --git a/src/renderer/tvgRender.h b/src/renderer/tvgRender.h
index 9dcf37cb..671b153b 100644
--- a/src/renderer/tvgRender.h
+++ b/src/renderer/tvgRender.h
@@ -32,7 +32,7 @@ namespace tvg
 using RenderData = void*;
 using pixel_t = uint32_t;
 
-enum RenderUpdateFlag : uint8_t {None = 0, Path = 1, Color = 2, Gradient = 4, Stroke = 8, Transform = 16, Image = 32, GradientStroke = 64, All = 255};
+enum RenderUpdateFlag : uint8_t {None = 0, Path = 1, Color = 2, Gradient = 4, Stroke = 8, Transform = 16, Image = 32, GradientStroke = 64, Blend = 128, All = 255};
 
 struct Surface;