diff --git a/include/refcount_internal.h b/include/refcount_internal.h
deleted file mode 100644
index cd9a371..0000000
--- a/include/refcount_internal.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef LIBABACUS_REFCOUNT_INTERNAL_H
-#define LIBABACUS_REFCOUNT_INTERNAL_H
-
-#include "refcount.h"
-
-void libab_ref_count_changed(libab_ref_count* count);
-
-#endif
diff --git a/src/gc.c b/src/gc.c
index da7d3d9..3572885 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -3,7 +3,6 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <memory.h>
-#include "refcount_internal.h"
 
 void libab_gc_list_init(libab_gc_list* list) {
     memset(&list->head_sentinel, 0, sizeof(list->head_sentinel));
diff --git a/src/refcount_internal.c b/src/refcount_internal.c
deleted file mode 100644
index 97d383d..0000000
--- a/src/refcount_internal.c
+++ /dev/null
@@ -1,16 +0,0 @@
-#include "refcount_internal.h"
-#include <stdlib.h>
-
-void libab_ref_count_changed(libab_ref_count* count) {
-    if (count->strong == 0) {
-        count->strong--;
-        if (count->free_func) {
-            count->free_func(count->data);
-        }
-    }
-    if (count->weak == 0) {
-        if(count->prev) count->prev->next = count->next;
-        if(count->next) count->next->prev = count->prev;
-        free(count);
-    }
-}