diff --git a/C/dbase.c b/C/dbase.c
index 73d531875..594d711b9 100644
--- a/C/dbase.c
+++ b/C/dbase.c
@@ -5399,7 +5399,7 @@ p_install_thread_local(void)
       pe->cs.p_code.NOfClauses) {
     return FALSE;
   }
-  pe->PredFlags |= ThreadLocalPredFlag;
+  pe->PredFlags |= ThreadLocalPredFlag|LogUpdatePredFlag;
   pe->OpcodeOfPred = Yap_opcode(_thread_local);
   pe->CodeOfPred = (yamop *)&pe->OpcodeOfPred;
   UNLOCK(pe->PELock);