diff --git a/src/common/fontcmn.cpp b/src/common/fontcmn.cpp
index dd3544a26b..337359dc07 100644
--- a/src/common/fontcmn.cpp
+++ b/src/common/fontcmn.cpp
@@ -54,11 +54,11 @@
 // helper functions
 // ----------------------------------------------------------------------------
 
-static void AdjustFontSize(wxFont font, wxDC& dc, const wxSize& pixelSize)
+static void AdjustFontSize(wxFont& font, wxDC& dc, const wxSize& pixelSize)
 {
     int currentSize = font.GetPointSize();
-    int largestGood wxDUMMY_INITIALIZE(0);
-    int smallestBad wxDUMMY_INITIALIZE(0);
+    int largestGood = 0;
+    int smallestBad = 0;
 
     bool initialGoodFound = false;
     bool initialBadFound = false;