diff --git a/src/modal.c b/src/modal.c
index 8d99423..aafb989 100644
--- a/src/modal.c
+++ b/src/modal.c
@@ -148,6 +148,7 @@ apply_rule(Rule *r, char *s)
 		while(*s == ' ') s++;
 		if(*s == ')' && *(dst_ - 1) == ' ') dst_--;
 	}
+	printf("[%s]\n", r->a);
 	return write_rule(r, s, 0);
 }
 
@@ -216,7 +217,7 @@ rewrite(void)
 			if(c == '?' && s[1] == '(') {
 				cap = walk(s + 1), compile_rule(&lambda, -1, s + 2), s = cap;
 				while(*s == ' ') s++;
-				if(!apply_rule(&lambda, s)) write_rule(r, s, 0);
+				if(!apply_rule(&lambda, s)) write_rule(&lambda, s, 0);
 				return 1;
 			}
 			/* phase: match */
@@ -240,7 +241,7 @@ main(int argc, char **argv)
 		return !printf("usage: modal [-vqn] source.modal\n");
 	for(i = 1; i < argc && *argv[i] == '-'; i++) {
 		switch(argv[i][1]) {
-		case 'v': /* version */ return !printf("Modal Interpreter, 25 Apr 2024.\n");
+		case 'v': /* version */ return !printf("Modal Interpreter, 26 Apr 2024.\n");
 		case 'q': /* quiet */ quiet = 1; break;
 		case 'n': /* infinite */ cycles = 0xffffffff; break;
 		}