diff --git a/.bashrc b/.bashrc
index f1403ee..1fbe852 100644
--- a/.bashrc
+++ b/.bashrc
@@ -9,6 +9,8 @@ shopt -s histappend
 #export PROMPT_COMMAND="history -a"
 PROMPT_COMMAND="history -a; $PROMPT_COMMAND"
 
+export HISTCONTROL=erasedups
+
 # If not running interactively, don't do anything
 case $- in
     *i*) ;;