diff --git a/bashrc b/bashrc
index 3f9c6db..725fcaa 100644
--- a/bashrc
+++ b/bashrc
@@ -9,7 +9,7 @@ _precmd()
 {
     [ -z "$AT_PROMPT" ] && return
     unset AT_PROMPT
-    history -a
+    [ -z "$TFW_DELAY_HISTAPPEND" ] && history -a
 }
 trap _precmd DEBUG