Use character in variable

src/modal.c

@@ -95,7 +95,7 @@ match_rule(Rule *r, char *p)
 			a++, b = walk(b);
 			continue;
 		}
-		if(*a != *b) return NULL;
+		if(c != *b) return NULL;
 		a++, b++, last = c;
 	}
 	c = *b;