diff --git a/src/Mod/Fem/Gui/PreCompiled.h b/src/Mod/Fem/Gui/PreCompiled.h
index 423ea9eb4c..56e1e86574 100644
--- a/src/Mod/Fem/Gui/PreCompiled.h
+++ b/src/Mod/Fem/Gui/PreCompiled.h
@@ -62,7 +62,6 @@
 // OCC
 #include <BRepAdaptor_Surface.hxx>
 #include <Precision.hxx>
-#include <Standard_math.hxx>
 #include <TopoDS.hxx>
 #include <TopoDS_Shape.hxx>
 
diff --git a/src/Mod/Part/App/OpenCascadeAll.h b/src/Mod/Part/App/OpenCascadeAll.h
index 130c89b49d..df7f32048c 100644
--- a/src/Mod/Part/App/OpenCascadeAll.h
+++ b/src/Mod/Part/App/OpenCascadeAll.h
@@ -50,7 +50,6 @@
 #include <Standard_LicenseError.hxx>
 #include <Standard_LicenseNotFound.hxx>
 #include <Standard_Macro.hxx>
-#include <Standard_math.hxx>
 #include <Standard_MultiplyDefined.hxx>
 #include <Standard_NegativeValue.hxx>
 #include <Standard_NoMoreObject.hxx>
diff --git a/src/Mod/Sandbox/Gui/AppSandboxGui.cpp b/src/Mod/Sandbox/Gui/AppSandboxGui.cpp
index 3fe70ad212..848ec3169f 100644
--- a/src/Mod/Sandbox/Gui/AppSandboxGui.cpp
+++ b/src/Mod/Sandbox/Gui/AppSandboxGui.cpp
@@ -24,7 +24,6 @@
 #include "PreCompiled.h"
 #ifndef _PreComp_
 # include <Python.h>
-# include <Standard_math.hxx>
 # include <Inventor/nodes/SoLineSet.h>
 # include <Inventor/nodes/SoBaseColor.h>
 # include <Inventor/nodes/SoSeparator.h>