diff --git a/examples/test.modal b/examples/test.modal
index 312e9f4..c9e0aa4 100644
--- a/examples/test.modal
+++ b/examples/test.modal
@@ -1,4 +1,4 @@
 <> (swap ?x ?y) (?y ?x)
 
-(swap 123 456)
+(swap (123) (456))
 
diff --git a/src/modal.c b/src/modal.c
index 9f6600a..c10fe55 100644
--- a/src/modal.c
+++ b/src/modal.c
@@ -18,15 +18,15 @@ walk(char *s)
 {
 	int depth = 0;
 	char c;
-	while((c = *s++)) {
-		if(c == '(') depth++;
-		if(c == ')') {
-			--depth;
-			if(!depth) break;
+	if(s[0] == '(') {
+		while((c = *s++)) {
+			if(c == '(') depth++;
+			if(c == ')') --depth;
+			if(!depth) return s;
 		}
-		if(depth == 0 && c == ' ') return s - 1;
-		if(depth < 1 && c == ' ') { return s - 1; }
 	}
+	while((c = *s++))
+		if(spacer(c)) return s - 1;
 	return s;
 }