diff --git a/src/libs/vlayout/vbestsquare.cpp b/src/libs/vlayout/vbestsquare.cpp
index 642285bd4..9a2d25c76 100644
--- a/src/libs/vlayout/vbestsquare.cpp
+++ b/src/libs/vlayout/vbestsquare.cpp
@@ -71,6 +71,21 @@ VBestSquare &VBestSquare::operator=(const VBestSquare &res)
     return *this;
 }
 
+#ifdef Q_COMPILER_RVALUE_REFS
+//---------------------------------------------------------------------------------------------------------------------
+VBestSquare &VBestSquare::operator=(VBestSquare &&res) Q_DECL_NOTHROW
+{
+    Swap(res);
+    return *this;
+}
+#endif
+
+//---------------------------------------------------------------------------------------------------------------------
+void VBestSquare::Swap(VBestSquare &res) Q_DECL_NOTHROW
+{
+    std::swap(d, res.d);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void VBestSquare::NewResult(const VBestSquareResData &data)
 {
diff --git a/src/libs/vlayout/vbestsquare.h b/src/libs/vlayout/vbestsquare.h
index c9c3d9699..1423485fd 100644
--- a/src/libs/vlayout/vbestsquare.h
+++ b/src/libs/vlayout/vbestsquare.h
@@ -49,11 +49,10 @@ public:
 
     VBestSquare &operator=(const VBestSquare &res);
 #ifdef Q_COMPILER_RVALUE_REFS
-    VBestSquare &operator=(VBestSquare &&res) Q_DECL_NOTHROW { Swap(res); return *this; }
+    VBestSquare &operator=(VBestSquare &&res) Q_DECL_NOTHROW;
 #endif
 
-    inline void Swap(VBestSquare &res) Q_DECL_NOTHROW
-    { std::swap(d, res.d); }
+    void Swap(VBestSquare &res) Q_DECL_NOTHROW;
 
     void NewResult(const VBestSquareResData &data);
     void NewResult(const VBestSquare &best);