2 files changed, 2 insertions, 2 deletions
diff --git a/src/extension/internal/odf.h b/src/extension/internal/odf.h
index 47cd47296..6b8883134 100644
--- a/src/extension/internal/odf.h
+++ b/src/extension/internal/odf.h
@@ -139,7 +139,7 @@ public:
         {}
     GradientStop(const GradientStop &other)
         {  assign(other); }
-    virtual GradientStop operator=(const GradientStop &other)
+    virtual GradientStop& operator=(const GradientStop &other)
         {  assign(other); return *this; }
     void assign(const GradientStop &other)
         {
diff --git a/src/extension/internal/pov-out.h b/src/extension/internal/pov-out.h
index 2381a974c..dddc7e6b2 100644
--- a/src/extension/internal/pov-out.h
+++ b/src/extension/internal/pov-out.h
@@ -141,7 +141,7 @@ private:
             {}
         PovShapeInfo(const PovShapeInfo &other)
             { assign(other); }
-        PovShapeInfo operator=(const PovShapeInfo &other)
+        PovShapeInfo& operator=(const PovShapeInfo &other)
             { assign(other); return *this; }
         virtual ~PovShapeInfo()
             {}