diff --git a/src/globals.h b/src/globals.h
index 1b2b1e8..2504d2e 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -181,6 +181,7 @@
 EXTERN int	did_emsg;		    /* set by emsg() when the message
 					       is displayed or thrown */
 #ifdef FEAT_EVAL
+EXTERN int	called_vim_beep;	    /* set if vim_beep() is called */
 EXTERN int	did_uncaught_emsg;	    /* emsg() was called and did not
 					       cause an exception */
 #endif