diff --git a/zsh-autosuggestions.zsh b/zsh-autosuggestions.zsh
index 38a26df..fd52ae3 100644
--- a/zsh-autosuggestions.zsh
+++ b/zsh-autosuggestions.zsh
@@ -533,7 +533,7 @@ _zsh_autosuggest_strategy_match_prev_cmd() {
 	# Get all history event numbers that correspond to history
 	# entries that match pattern $prefix*
 	local history_match_keys
-  history_match_keys=(${(k)history[(R)${(q)prefix}*]})
+	history_match_keys=(${(k)history[(R)${(q)prefix}*]})
 
 	# By default we use the first history number (most recent history entry)
 	local histkey="${history_match_keys[1]}"