diff --git a/gc.c b/gc.c
index ff2f308a88..c7e3034240 100644
--- a/gc.c
+++ b/gc.c
@@ -8671,7 +8671,7 @@ rb_gc_force_recycle(VALUE obj)
         }
         else {
 #endif
-            if (is_old || !GET_HEAP_PAGE(obj)->flags.before_sweep) {
+            if (is_old || GET_HEAP_PAGE(obj)->flags.before_sweep) {
                 CLEAR_IN_BITMAP(GET_HEAP_MARK_BITS(obj), obj);
             }
             CLEAR_IN_BITMAP(GET_HEAP_MARKING_BITS(obj), obj);