diff --git a/.config/zsh/functions/btrfs-snapshot-compare b/.config/zsh/functions/btrfs-snapshot-compare
index 21d05a1..3211fb9 100755
--- a/.config/zsh/functions/btrfs-snapshot-compare
+++ b/.config/zsh/functions/btrfs-snapshot-compare
@@ -5,7 +5,7 @@ setopt LOCAL_OPTIONS ERR_RETURN NO_UNSET PIPE_FAIL
 
 autoload -U die
 
-[[ ${ARGC} -lt 2 ]] && die 1 "Usage: ${0} <old> <new>"
+[[ ${ARGC} -ne 2 ]] && die 1 "Usage: ${0} <old> <new>"
 local old="${1}"
 local new="${2}"