diff --git a/src/segment.c b/src/segment.c
index 3423bd53..25e63904 100644
--- a/src/segment.c
+++ b/src/segment.c
@@ -540,8 +540,12 @@ static void mi_segment_perhaps_decommit(mi_segment_t* segment, uint8_t* p, size_
     }
     else if (segment->decommit_expire <= now) {
       // previous decommit mask already expired
-      // mi_segment_delayed_decommit(segment, true, stats);
-      segment->decommit_expire = now + mi_option_get(mi_option_decommit_extend_delay); // (mi_option_get(mi_option_decommit_delay) / 8); // wait a tiny bit longer in case there is a series of free's
+      if (segment->decommit_expire + mi_option_get(mi_option_decommit_extend_delay) <= now) {
+        mi_segment_delayed_decommit(segment, true, stats);
+      }
+      else {
+        segment->decommit_expire = now + mi_option_get(mi_option_decommit_extend_delay); // (mi_option_get(mi_option_decommit_delay) / 8); // wait a tiny bit longer in case there is a series of free's
+      }
     }
     else {
       // previous decommit mask is not yet expired, increase the expiration by a bit.