diff --git a/reactos/dll/directx/ddraw/main/ddraw_main.c b/reactos/dll/directx/ddraw/main/ddraw_main.c
index 3a2f39209db..8a8e89b9b0a 100644
--- a/reactos/dll/directx/ddraw/main/ddraw_main.c
+++ b/reactos/dll/directx/ddraw/main/ddraw_main.c
@@ -109,7 +109,7 @@ Main_DirectDraw_Release (LPDIRECTDRAW7 iface)
             }
 		}
     }
-    return This->dwIntRefCnt;
+	return This ? This->dwIntRefCnt : 0;
 }
 
 /*
diff --git a/reactos/dll/directx/ddraw/main/surface_main.c b/reactos/dll/directx/ddraw/main/surface_main.c
index 874a7c54c92..ef40266f1d0 100644
--- a/reactos/dll/directx/ddraw/main/surface_main.c
+++ b/reactos/dll/directx/ddraw/main/surface_main.c
@@ -86,7 +86,7 @@ HRESULT WINAPI Main_DDrawSurface_Blt(LPDIRECTDRAWSURFACE7 iface, LPRECT rdst,
 	     BltData.Blt = ThisDest->lpLcl->lpGbl->lpDD->lpDDCBtmp->cbDDSurfaceCallbacks.Blt;
 	    
 		 BltData.lpDDDestSurface = ThisDest->lpLcl;
-		 BltData.lpDDSrcSurface = ThisSrc->lpLcl;
+		 BltData.lpDDSrcSurface = ThisSrc ? ThisSrc->lpLcl : 0;
 		 BltData.dwFlags = dwFlags;
 
 		 if (rdst != NULL)