diff --git a/src/prefs/KeyConfigPrefs.cpp b/src/prefs/KeyConfigPrefs.cpp
index 19441ccb0..1929ed914 100644
--- a/src/prefs/KeyConfigPrefs.cpp
+++ b/src/prefs/KeyConfigPrefs.cpp
@@ -287,6 +287,7 @@ void KeyConfigPrefs::RefreshBindings()
    wxArrayString Categories;
    wxArrayString Prefixes;
 
+   mNames.Clear();
    mManager->GetAllCommandData(
       mNames, 
       mKeys,