diff --git a/src/Mod/Fem/App/FemConstraintInitialTemperature.h b/src/Mod/Fem/App/FemConstraintInitialTemperature.h
index 2bfcc7bb83..0f27c06d81 100644
--- a/src/Mod/Fem/App/FemConstraintInitialTemperature.h
+++ b/src/Mod/Fem/App/FemConstraintInitialTemperature.h
@@ -56,7 +56,7 @@ public:
 
 protected:
     void handleChangedPropertyType(Base::XMLReader& reader, const char* TypeName,
-                                   App::Property* prop);
+                                   App::Property* prop) override;
     void onChanged(const App::Property* prop) override;
 
 };
diff --git a/src/Mod/Fem/App/FemConstraintTemperature.h b/src/Mod/Fem/App/FemConstraintTemperature.h
index c2e088f8db..9da66dc089 100644
--- a/src/Mod/Fem/App/FemConstraintTemperature.h
+++ b/src/Mod/Fem/App/FemConstraintTemperature.h
@@ -58,7 +58,7 @@ public:
 
 protected:
     void handleChangedPropertyType(Base::XMLReader& reader, const char* TypeName,
-                                   App::Property* prop);
+                                   App::Property* prop) override;
     void onChanged(const App::Property* prop) override;
 
 };
diff --git a/src/Mod/Fem/App/FemConstraintTransform.h b/src/Mod/Fem/App/FemConstraintTransform.h
index e0c2705b3c..417992501c 100644
--- a/src/Mod/Fem/App/FemConstraintTransform.h
+++ b/src/Mod/Fem/App/FemConstraintTransform.h
@@ -59,7 +59,7 @@ public:
 
 protected:
     void handleChangedPropertyType(Base::XMLReader& reader, const char* TypeName,
-                                   App::Property* prop);
+                                   App::Property* prop) override;
     void onChanged(const App::Property* prop) override;
 
 };
diff --git a/src/Mod/Fem/Gui/AbaqusHighlighter.h b/src/Mod/Fem/Gui/AbaqusHighlighter.h
index 4b6d5a9e1c..38311646f5 100644
--- a/src/Mod/Fem/Gui/AbaqusHighlighter.h
+++ b/src/Mod/Fem/Gui/AbaqusHighlighter.h
@@ -36,10 +36,10 @@ class AbaqusHighlighter : public Gui::SyntaxHighlighter
 {
 public:
     explicit AbaqusHighlighter(QObject* parent);
-    virtual ~AbaqusHighlighter();
+    ~AbaqusHighlighter() override;
 
 protected:
-    void highlightBlock(const QString &text);
+    void highlightBlock(const QString &text) override;
 };
 
 } // namespace FemGui
diff --git a/src/Mod/Fem/Gui/PreCompiled.h b/src/Mod/Fem/Gui/PreCompiled.h
index 1b68eb50dc..d8132644f4 100644
--- a/src/Mod/Fem/Gui/PreCompiled.h
+++ b/src/Mod/Fem/Gui/PreCompiled.h
@@ -36,7 +36,6 @@
 #include <cassert>
 #include <cmath>
 #include <iostream>
-#include <math.h>
 
 // STL
 #include <algorithm>