diff --git a/src/Mod/Part/App/ShapeUpgrade/UnifySameDomainPyImp.cpp b/src/Mod/Part/App/ShapeUpgrade/UnifySameDomainPyImp.cpp
index a759180596..a268fced5c 100644
--- a/src/Mod/Part/App/ShapeUpgrade/UnifySameDomainPyImp.cpp
+++ b/src/Mod/Part/App/ShapeUpgrade/UnifySameDomainPyImp.cpp
@@ -23,6 +23,7 @@
 
 #include "PreCompiled.h"
 #ifndef _PreComp_
+# include <Precision.hxx>
 # include <Standard_Failure.hxx>
 #endif