diff --git a/src/gtk/bitmap.cpp b/src/gtk/bitmap.cpp
index 5728f236b9..f929e78dc2 100644
--- a/src/gtk/bitmap.cpp
+++ b/src/gtk/bitmap.cpp
@@ -18,6 +18,7 @@
     #include "wx/cursor.h"
 #endif
 
+#include "wx/math.h"
 #include "wx/rawbmp.h"
 
 #include "wx/gtk/private/object.h"
@@ -991,7 +992,7 @@ void wxBitmap::SetMask( wxMask *mask )
 #ifdef __WXGTK3__
 bool wxBitmap::CreateScaled(int w, int h, int depth, double scale)
 {
-    Create(int(w * scale), int(h * scale), depth);
+    Create(wxRound(w * scale), wxRound(h * scale), depth);
     M_BMPDATA->m_scaleFactor = scale;
     return true;
 }