diff --git a/src/vim.h b/src/vim.h
index d8cd699..51b7c10 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1080,6 +1080,7 @@
     EVENT_INSERTCHANGE,		/* when changing Insert/Replace mode */
     EVENT_INSERTENTER,		/* when entering Insert mode */
     EVENT_INSERTLEAVE,		/* when leaving Insert mode */
+    EVENT_MENUPOPUP,		/* just before popup menu is displayed */
     EVENT_QUICKFIXCMDPOST,	/* after :make, :grep etc */
     EVENT_QUICKFIXCMDPRE,	/* before :make, :grep etc */
     EVENT_STDINREADPOST,	/* after reading from stdin */