1 files changed, 2 insertions, 2 deletions

diff --git a/src/alloc.c b/src/alloc.c
index e979f3631ee..93ea286cfb8 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -6406,7 +6406,7 @@ mark_object (Lisp_Object arg)
 
 #ifdef GC_CHECK_MARKED_OBJECTS
         m = mem_find (po);
-        if (m == MEM_NIL && !SUBRP (obj) && !THREADP (obj))
+        if (m == MEM_NIL && !SUBRP (obj) && !primary_thread_p (po))
           emacs_abort ();
 #endif /* GC_CHECK_MARKED_OBJECTS */
 
@@ -6418,7 +6418,7 @@ mark_object (Lisp_Object arg)
 
         if (pvectype != PVEC_SUBR
             && pvectype != PVEC_BUFFER
-            && pvectype != PVEC_THREAD)
+            && !primary_thread_p (po))
           CHECK_LIVE (live_vector_p);
 
         switch (pvectype)