--- a/gfx/gl/ScopedGLHelpers.cpp
+++ b/gfx/gl/ScopedGLHelpers.cpp
@@ -194,17 +194,19 @@ GetBoundTexture(GLContext* gl, GLenum te
     return ret;
 }
 
 ScopedBindTexture::ScopedBindTexture(GLContext* aGL, GLuint aNewTex, GLenum aTarget)
         : ScopedGLWrapper<ScopedBindTexture>(aGL)
         , mTarget(aTarget)
         , mOldTex(GetBoundTexture(aGL, aTarget))
 {
-    mGL->fBindTexture(mTarget, aNewTex);
+    if (aNewTex) {
+        mGL->fBindTexture(mTarget, aNewTex);
+    }
 }
 
 void
 ScopedBindTexture::UnwrapImpl()
 {
     mGL->fBindTexture(mTarget, mOldTex);
 }