diff --git a/malloc/malloc.c b/malloc/malloc.c
index 27cf6137c2..3aadaddd1d 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -4172,6 +4172,9 @@ _int_free (mstate av, mchunkptr p, int have_lock)
 
 #if USE_TCACHE
   {
+    /* Check if chunk is from our own arena.  */
+    if (av == thread_arena)
+      {
     size_t tc_idx = csize2tidx (size);
     if (tcache != NULL && tc_idx < mp_.tcache_bins)
       {
@@ -4201,6 +4204,7 @@ _int_free (mstate av, mchunkptr p, int have_lock)
 	    return;
 	  }
       }
+      }
   }
 #endif