--- a/src/keymap.h
+++ b/src/keymap.h
@@ -254,6 +254,8 @@ enum key_extra
     , KE_DROP		/* DnD data is available */
     , KE_CURSORHOLD	/* CursorHold event */
     , KE_NOP		/* doesn't do something */
+    , KE_FOCUSGAINED	/* focus gained */
+    , KE_FOCUSLOST	/* focus lost */
 };
 
 /*
@@ -445,6 +447,8 @@ enum key_extra
 #define K_CMDWIN	TERMCAP2KEY(KS_EXTRA, KE_CMDWIN)
 
 #define K_DROP		TERMCAP2KEY(KS_EXTRA, KE_DROP)
+#define K_FOCUSGAINED	TERMCAP2KEY(KS_EXTRA, KE_FOCUSGAINED)
+#define K_FOCUSLOST	TERMCAP2KEY(KS_EXTRA, KE_FOCUSLOST)
 
 #define K_CURSORHOLD	TERMCAP2KEY(KS_EXTRA, KE_CURSORHOLD)