1 files changed, 3 insertions, 1 deletions
diff --git a/src/gc.cpp b/src/gc.cpp
index 6655e40..59036df 100644
--- a/src/gc.cpp
+++ b/src/gc.cpp
@@ -57,10 +57,12 @@ GC::alloc(size_t size)
 inline void
 mark(const Object* obj)
 {
+	if (obj->tag() == T_SYMBOL)
+		return;
+
 	if (!obj || obj->marked())
 		return;
 
-	obj->mark(true);
 	if (obj->tag() != T_UNKNOWN) {
 		const ATuple* tup = ((const AST*)obj)->to_tuple();
 		if (tup)