diff --git a/gfx/src/beos/nsDrawingSurfaceBeOS.cpp b/gfx/src/beos/nsDrawingSurfaceBeOS.cpp
index 602006218cb..e2bd73ddf20 100644
--- a/gfx/src/beos/nsDrawingSurfaceBeOS.cpp
+++ b/gfx/src/beos/nsDrawingSurfaceBeOS.cpp
@@ -254,6 +254,11 @@ bool nsDrawingSurfaceBeOS :: LockDrawable()
 
 void nsDrawingSurfaceBeOS :: UnlockDrawable()
 {
-  if (!mBitmap)
+  if (!mView)
+    return;
+    
+  if (mBitmap)
+    mView->Sync();
+  else
     mView->UnlockLooper();
-}
\ No newline at end of file
+}