--- src/util.c
+++ src/util.c
@@ -1145,6 +1145,8 @@
 		/* strchr() matches trailing binary 0 */
 		while (*(++r) && strchr ("0123456789;?", *r));
 	    }
+	    else if (*(r) == '(')
+	        r++;
 
 	    /*
 	     * Now we are at the last character of the sequence.