diff --git a/kstyle/breezestyle.cpp b/kstyle/breezestyle.cpp
--- a/kstyle/breezestyle.cpp
+++ b/kstyle/breezestyle.cpp
@@ -2578,6 +2578,7 @@
 
         // add button width and spacing
         size.rwidth() += Metrics::MenuButton_IndicatorWidth+2;
+        size.rwidth() += Metrics::Button_ItemSpacing;
 
         return size;