diff --git a/Mesh/Generator.cpp b/Mesh/Generator.cpp
index bea223c2ff82004cd7aa4caecaa9004d0beb2c7f..e8fd0434382494c133d929ccde54ebf3ae6859fb 100644
--- a/Mesh/Generator.cpp
+++ b/Mesh/Generator.cpp
@@ -20,6 +20,7 @@
 #include "MPyramid.h"
 #include "meshGEdge.h"
 #include "meshGFace.h"
+#include "meshGFaceOptimize.h"
 #include "meshGFaceBDS.h"
 #include "meshGRegion.h"
 #include "BackgroundMesh.h"