diff --git a/gfx/layers/opengl/CompositingRenderTargetOGL.cpp b/gfx/layers/opengl/CompositingRenderTargetOGL.cpp
index c05b8edfd3..a1521c56da 100644
--- a/gfx/layers/opengl/CompositingRenderTargetOGL.cpp
+++ b/gfx/layers/opengl/CompositingRenderTargetOGL.cpp
@@ -60,7 +60,7 @@ CompositingRenderTargetOGL::BindRenderTarget()
         msg.AppendPrintf("Framebuffer not complete -- CheckFramebufferStatus returned 0x%x, "
                          "GLContext=%p, IsOffscreen()=%d, mFBO=%d, aFBOTextureTarget=0x%x, "
                          "aRect.width=%d, aRect.height=%d",
-                         result, mGL, mGL->IsOffscreen(), mFBO, mInitParams.mFBOTextureTarget,
+                         result, mGL.get(), mGL->IsOffscreen(), mFBO, mInitParams.mFBOTextureTarget,
                          mInitParams.mSize.width, mInitParams.mSize.height);
         NS_WARNING(msg.get());
       }
diff --git a/gfx/layers/opengl/CompositingRenderTargetOGL.h b/gfx/layers/opengl/CompositingRenderTargetOGL.h
index 501701d6f1..071dc5cac1 100644
--- a/gfx/layers/opengl/CompositingRenderTargetOGL.h
+++ b/gfx/layers/opengl/CompositingRenderTargetOGL.h
@@ -184,7 +184,7 @@ private:
    * the target is always cleared at the end of a frame.
    */
   RefPtr<CompositorOGL> mCompositor;
-  GLContext* mGL;
+  RefPtr<GLContext> mGL;
   GLuint mTextureHandle;
   GLuint mFBO;
 };