diff --git a/src/build/libhaikucompat/misc.cpp b/src/build/libhaikucompat/misc.cpp
index 48253ff69c..56d609310a 100644
--- a/src/build/libhaikucompat/misc.cpp
+++ b/src/build/libhaikucompat/misc.cpp
@@ -35,3 +35,11 @@ fs_unmount_volume(const char *path, uint32 flags)
 	return B_ERROR;
 }
 
+
+int32
+atomic_get(vint32 *value)
+{
+	return *value;
+}
+
+
diff --git a/src/servers/app/drawing/DrawingEngine.cpp b/src/servers/app/drawing/DrawingEngine.cpp
index ef5c544ec0..4514df2efa 100644
--- a/src/servers/app/drawing/DrawingEngine.cpp
+++ b/src/servers/app/drawing/DrawingEngine.cpp
@@ -190,7 +190,7 @@ DrawingEngine::CopyToFront(/*const*/ BRegion& region)
 {
 	int32 count = region.CountRects();
 	for (int32 i = 0; i < count; i++)
-		fGraphicsCard->CopyBackToFront(region.RectAt(i));
+		fGraphicsCard->Invalidate(region.RectAt(i));
 }