diff --git a/src/renderer/gl_engine/tvgGlRenderTarget.cpp b/src/renderer/gl_engine/tvgGlRenderTarget.cpp
index ddb322b3..e536ccda 100644
--- a/src/renderer/gl_engine/tvgGlRenderTarget.cpp
+++ b/src/renderer/gl_engine/tvgGlRenderTarget.cpp
@@ -31,7 +31,7 @@ GlRenderTarget::~GlRenderTarget()
 
 void GlRenderTarget::init(uint32_t width, uint32_t height, GLint resolveId)
 {
-    if (mFbo != GL_INVALID_VALUE || width == 0 || height == 0) return;
+    if (mFbo != 0 || width == 0 || height == 0) return;
     mWidth = width;
     mHeight = height;
 
@@ -84,7 +84,11 @@ void GlRenderTarget::reset()
     GL_CHECK(glDeleteRenderbuffers(1, &mDepthStencilBuffer));
     GL_CHECK(glDeleteFramebuffers(1, &mResolveFbo));
     GL_CHECK(glDeleteTextures(1, &mColorTex));
-    mFbo = GL_INVALID_VALUE;
+    mFbo = 0;
+    mColorBuffer = 0;
+    mDepthStencilBuffer = 0;
+    mResolveFbo = 0;
+    mColorTex = 0;
 }
 
 GlRenderTargetPool::GlRenderTargetPool(uint32_t maxWidth, uint32_t maxHeight): mMaxWidth(maxWidth), mMaxHeight(maxHeight), mPool() {}
diff --git a/src/renderer/gl_engine/tvgGlRenderTarget.h b/src/renderer/gl_engine/tvgGlRenderTarget.h
index 7577b35e..89a3d5e0 100644
--- a/src/renderer/gl_engine/tvgGlRenderTarget.h
+++ b/src/renderer/gl_engine/tvgGlRenderTarget.h
@@ -44,13 +44,13 @@ public:
     void setViewport(const RenderRegion& vp) { mViewport = vp; }
     const RenderRegion& getViewport() const { return mViewport; }
 
-    bool invalid() const { return mFbo == GL_INVALID_VALUE; }
+    bool invalid() const { return mFbo == 0; }
 
 private:
     uint32_t mWidth = 0;
     uint32_t mHeight = 0;
     RenderRegion mViewport{};
-    GLuint mFbo = GL_INVALID_VALUE;
+    GLuint mFbo = 0;
     GLuint mColorBuffer = 0;
     GLuint mDepthStencilBuffer = 0;
     GLuint mResolveFbo = 0;
diff --git a/src/renderer/gl_engine/tvgGlRenderer.cpp b/src/renderer/gl_engine/tvgGlRenderer.cpp
index 51b44c30..a7baf2af 100644
--- a/src/renderer/gl_engine/tvgGlRenderer.cpp
+++ b/src/renderer/gl_engine/tvgGlRenderer.cpp
@@ -790,7 +790,7 @@ bool GlRenderer::clear()
 bool GlRenderer::target(void* context, int32_t id, uint32_t w, uint32_t h)
 {
     //assume the context zero is invalid
-    if (!context || id == GL_INVALID_VALUE || w == 0 || h == 0) return false;
+    if (!context || w == 0 || h == 0) return false;
 
     if (mContext) currentContext();