diff --git a/include/gc/modules.h b/include/gc/modules.h
index f5d53ac..71f08ef 100644
--- a/include/gc/modules.h
+++ b/include/gc/modules.h
@@ -21,6 +21,7 @@ void gc_mark_esm(ant_t *js, gc_mark_fn mark);
 void gc_mark_worker_threads(ant_t *js, gc_mark_fn mark);
 void gc_mark_abort(ant_t *js, gc_mark_fn mark);
 void gc_mark_domexception(ant_t *js, gc_mark_fn mark);
+void gc_mark_queuing_strategies(ant_t *js, gc_mark_fn mark);
 void gc_mark_readable_streams(ant_t *js, gc_mark_fn mark);
 void gc_mark_writable_streams(ant_t *js, gc_mark_fn mark);
 
diff --git a/include/streams/queuing.h b/include/streams/queuing.h
index dd399c5..e88efc1 100644
--- a/include/streams/queuing.h
+++ b/include/streams/queuing.h
@@ -1,6 +1,9 @@
 #ifndef STREAMS_QUEUING_H
 #define STREAMS_QUEUING_H
 
+#include "types.h"
+
 void init_queuing_strategies_module(void);
+void gc_mark_queuing_strategies(ant_t *js, void (*mark)(ant_t *, ant_value_t));
 
 #endif
diff --git a/src/gc/objects.c b/src/gc/objects.c
index 07efe3a..a05b665 100644
--- a/src/gc/objects.c
+++ b/src/gc/objects.c
@@ -454,6 +454,7 @@ static void gc_mark_roots(ant_t *js) {
   gc_mark_worker_threads(js, gc_mark_value);
   gc_mark_abort(js, gc_mark_value);
   gc_mark_domexception(js, gc_mark_value);
+  gc_mark_queuing_strategies(js, gc_mark_value);
   gc_mark_readable_streams(js, gc_mark_value);
   gc_mark_writable_streams(js, gc_mark_value);
 
@@ -754,4 +755,4 @@ void gc_objects_run_minor(ant_t *js, gc_str_mark_fn str_mark) {
 
 uint64_t gc_get_epoch(void) { 
   return gc_epoch;
-}
\ No newline at end of file
+}
diff --git a/src/streams/queuing.c b/src/streams/queuing.c
index ee22242..04dceed 100644
--- a/src/streams/queuing.c
+++ b/src/streams/queuing.c
@@ -109,3 +109,8 @@ void init_queuing_strategies_module(void) {
   js_set(js, g, "ByteLengthQueuingStrategy", blqs_ctor);
   js_set_descriptor(js, g, "ByteLengthQueuingStrategy", 25, JS_DESC_W | JS_DESC_C);
 }
+
+void gc_mark_queuing_strategies(ant_t *js, void (*mark)(ant_t *, ant_value_t)) {
+  mark(js, g_count_qs_proto);
+  mark(js, g_bytelength_qs_proto);
+}