diff --git a/src/gui/ComboDialog.cxx b/src/gui/ComboDialog.cxx
index 4f887bc41..7f083f736 100644
--- a/src/gui/ComboDialog.cxx
+++ b/src/gui/ComboDialog.cxx
@@ -91,13 +91,13 @@ void ComboDialog::loadConfig()
 {
   StringList events = instance().eventHandler().getComboListForEvent(myComboEvent);
 
-  uInt32 size = std::min<uInt32>(events.size(), 8);
-  for(uInt32 i = 0; i < size; ++i)
+  size_t size = std::min<size_t>(events.size(), 8);
+  for(size_t i = 0; i < size; ++i)
     myEvents[i]->setSelected("", events[i]);
 
   // Fill any remaining items to 'None'
   if(size < 8)
-    for(uInt32 i = size; i < 8; ++i)
+    for(size_t i = size; i < 8; ++i)
       myEvents[i]->setSelected("None", "-1");
 }