diff --git a/Kinetic_data_structures/include/CGAL/Tools/Log.h b/Kinetic_data_structures/include/CGAL/Tools/Log.h
index c8100c3b62f..8d2a155da6b 100644
--- a/Kinetic_data_structures/include/CGAL/Tools/Log.h
+++ b/Kinetic_data_structures/include/CGAL/Tools/Log.h
@@ -67,7 +67,7 @@ private:
   
 #ifdef CGAL_HEADER_ONLY
   
-  inline static State& get_static_state()
+  static State& get_static_state()
   {
     static State state_;
     return state_;
@@ -76,7 +76,7 @@ private:
 #else // CGAL_HEADER_ONLY
 
   CGAL_EXPORT static State state_;
-  inline static State& get_static_state()
+  static State& get_static_state()
   { 
     return state_; 
   }
diff --git a/Profiling_tools/include/CGAL/Real_timer.h b/Profiling_tools/include/CGAL/Real_timer.h
index 06f96b6ac02..4c621cd9114 100644
--- a/Profiling_tools/include/CGAL/Real_timer.h
+++ b/Profiling_tools/include/CGAL/Real_timer.h
@@ -51,7 +51,7 @@ private:
     bool        running;
 
 #ifdef CGAL_HEADER_ONLY
-    inline bool& get_static_realtimer_m_failed()
+    static bool& get_static_realtimer_m_failed()
     {
       static bool m_failed = false;
       return m_failed;