diff --git a/.zshrc b/.zshrc
index b37fa62..5d12551 100644
--- a/.zshrc
+++ b/.zshrc
@@ -54,6 +54,7 @@ source $ZSH/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
 ZSH_AUTOSUGGEST_CLEAR_WIDGETS=("${(@)ZSH_AUTOSUGGEST_CLEAR_WIDGETS:#(up|down)-line-or-history}")
 ZSH_AUTOSUGGEST_CLEAR_WIDGETS+=(history-substring-search-up history-substring-search-down)
 
+setopt HIST_IGNORE_ALL_DUPS
 ZSH_HIGHLIGHT_STYLES[default]='fg=blue'
 ZSH_HIGHLIGHT_STYLES[unknown-token]='fg=red,bold'
 ZSH_HIGHLIGHT_STYLES[reserved-word]='fg=yellow'