diff --git a/src/common/sizer.cpp b/src/common/sizer.cpp
index dfe492531d..9e430cdb84 100644
--- a/src/common/sizer.cpp
+++ b/src/common/sizer.cpp
@@ -1419,8 +1419,8 @@ static void GetStaticBoxBorders( wxStaticBox *box,
         *borderTop = 5;
     else
 #endif // __WXGTK__
-        *borderTop = 15;
-    (void)box;
+        *borderTop = box->GetCharHeight();
+
     *borderOther = 5;
 }