diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index a238e2d..637c8a0 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -500,7 +500,7 @@
 		nrs[lnum - eap->line1].start_col_nr = -MAXLNUM;
 	    else
 		vim_str2nr(s, NULL, NULL, sort_oct, sort_hex,
-				  &nrs[lnum - eap->line1].start_col_nr, NULL);
+				  &nrs[lnum - eap->line1].start_col_nr, NULL, 0);
 	    *s2 = c;
 	}
 	else