diff --git a/user/config/bash/history b/user/config/bash/history
index 3ddee4f..779bb9a 100644
--- a/user/config/bash/history
+++ b/user/config/bash/history
@@ -11,4 +11,8 @@ HISTFILESIZE=
 HISTSIZE=
 HISTTIMEFORMAT="[%F %T] "
 HISTFILE=~/.cache/bash_history
-PROMPT_COMMAND="history -a; $PROMPT_COMMAND"
+if [ -z "$PROMPT_COMMAND" ]; then
+  PROMPT_COMMAND="history -a"
+else
+  PROMPT_COMMAND="history -a; $PROMPT_COMMAND"
+fi