diff --git a/src/Mod/Part/App/ShapeUpgrade/UnifySameDomainPyImp.cpp b/src/Mod/Part/App/ShapeUpgrade/UnifySameDomainPyImp.cpp
index a268fced5c..9056bcd0eb 100644
--- a/src/Mod/Part/App/ShapeUpgrade/UnifySameDomainPyImp.cpp
+++ b/src/Mod/Part/App/ShapeUpgrade/UnifySameDomainPyImp.cpp
@@ -27,6 +27,9 @@
 # include <Standard_Failure.hxx>
 #endif
 
+// Needed for OCCT 7.5.2
+#include <TopoDS_Edge.hxx>
+
 #include "ShapeUpgrade/UnifySameDomainPy.h"
 #include "ShapeUpgrade/UnifySameDomainPy.cpp"
 #include "TopoShapePy.h"