diff --git a/zshrc b/zshrc
index 6c5dc5e..2570a71 100644
--- a/zshrc
+++ b/zshrc
@@ -53,6 +53,7 @@ DISABLE_AUTO_UPDATE="true"
 # stamp shown in the history command output.
 # The optional three formats: "mm/dd/yyyy"|"dd.mm.yyyy"|"yyyy-mm-dd"
 HIST_STAMPS="mm/dd/yyyy"
+HIST_IGNORE_DUPS="true"
 
 # Would you like to use another custom folder than $ZSH/custom?
 # ZSH_CUSTOM=/path/to/new-custom-folder