diff --git a/src/ex_eval.c b/src/ex_eval.c
index c8e33c2..c68c6ad 100644
--- a/src/ex_eval.c
+++ b/src/ex_eval.c
@@ -1562,7 +1562,11 @@
 		}
 		save_cpo  = p_cpo;
 		p_cpo = (char_u *)"";
+		/* Disable error messages, it will make current_exception
+		 * invalid. */
+		++emsg_off;
 		regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
+		--emsg_off;
 		regmatch.rm_ic = FALSE;
 		if (end != NULL)
 		    *end = save_char;