diff --git a/src/strategies/match_prev_cmd.zsh b/src/strategies/match_prev_cmd.zsh
index a1cb696..9e61693 100644
--- a/src/strategies/match_prev_cmd.zsh
+++ b/src/strategies/match_prev_cmd.zsh
@@ -26,7 +26,7 @@ _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]}"