diff --git a/include/wx/event.h b/include/wx/event.h
index 06cd01f28b..6be32bc266 100644
--- a/include/wx/event.h
+++ b/include/wx/event.h
@@ -1519,7 +1519,7 @@ enum wxKeyCategoryFlags
     // home and end keys, on and off numeric keypads
     WXK_CATEGORY_JUMP   = 4,
 
-    // tab key
+    // tab key, on and off numeric keypads
     WXK_CATEGORY_TAB    = 8,
 
     // backspace and delete keys, on and off numeric keypads
diff --git a/interface/wx/event.h b/interface/wx/event.h
index b934e0e9b0..9ac341c576 100644
--- a/interface/wx/event.h
+++ b/interface/wx/event.h
@@ -1102,7 +1102,7 @@ enum wxKeyCategoryFlags
     /// home and end keys, on and off numeric keypads
     WXK_CATEGORY_JUMP,
 
-    /// tab key
+    /// tab key, on and off numeric keypads
     WXK_CATEGORY_TAB,
 
     /// backspace and delete keys, on and off numeric keypads
diff --git a/src/common/event.cpp b/src/common/event.cpp
index 658f7523af..4dd9eaeaa4 100644
--- a/src/common/event.cpp
+++ b/src/common/event.cpp
@@ -779,6 +779,7 @@ bool wxKeyEvent::IsKeyInCategory(int category) const
             return (category & WXK_CATEGORY_JUMP) != 0;
 
         case WXK_TAB:
+        case WXK_NUMPAD_TAB:
             return (category & WXK_CATEGORY_TAB) != 0;
 
         case WXK_BACK: