diff --git a/.bashrc b/.bashrc
index 329e602..5ae3992 100644
--- a/.bashrc
+++ b/.bashrc
@@ -6,7 +6,7 @@
 HISTSIZE=5000
 HISTFILESIZE=10000
 shopt -s histappend
-PROMPT_COMMAND="history -a"
+export PROMPT_COMMAND="history -a"
 
 # If not running interactively, don't do anything
 case $- in