diff --git a/makefile b/makefile
index 5fc6c66..cf49fed 100644
--- a/makefile
+++ b/makefile
@@ -8,7 +8,7 @@ all: dest
 dest:
 	@ mkdir -p bin
 run: all bin/modal
-	@ bin/modal examples/hello.modal
+	@ bin/modal -q examples/hello.modal
 debug: all bin/modal-debug
 	@ bin/modal-debug examples/hello.modal
 test: all bin/modal-debug bin/modal
diff --git a/src/modal.c b/src/modal.c
index 3730ac4..8a1744a 100644
--- a/src/modal.c
+++ b/src/modal.c
@@ -105,13 +105,13 @@ write_rule(Rule *r, char *s, int create)
 static int
 apply_rule(Rule *r, char *s)
 {
-	char c, *a = r->a, *regs[0x10] = {NULL};
-	while((c = *a)) { /* phase: match rule */
+	char c, *a = r->a, *regs[0x08] = {NULL};
+	/* phase: match rule */
+	while((c = *a)) {
 		if(c == '?') {
 			char *pcap = walk(s), *reg = NULL;
 			unsigned int id = *(++a) - '0';
-			if(id < r->ptr) reg = regs[id];
-			if(reg) { /* reg cmp */
+			if((reg = regs[id])) { /* reg cmp */
 				char *rcap = walk(reg), *pp = s;
 				while(reg < rcap || pp < pcap)
 					if(*reg++ != *pp++) return 0;
@@ -125,7 +125,8 @@ apply_rule(Rule *r, char *s)
 		if(c != *s) return 0;
 		a++, s++;
 	}
-	if(!(c = *s) || spacer(c)) { /* phase: write rule */
+	/* phase: write rule */
+	if(!(c = *s) || spacer(c)) {
 		char *b = r->b, *origin = dst_;
 		while((c = *b++)) {
 			if(c == '?') {