diff --git a/src/mzscheme/src/port.c b/src/mzscheme/src/port.c
index 40e2ba6238..028222e656 100644
--- a/src/mzscheme/src/port.c
+++ b/src/mzscheme/src/port.c
@@ -977,9 +977,6 @@ void scheme_suspend_remembered_threads(void)
       prev = tm;
     }
   }
-
-  if (prev)
-    prev->next = NULL;
 }
 
 void scheme_resume_remembered_threads(void)