diff --git a/.config/zsh/prompt.zsh b/.config/zsh/prompt.zsh
index 37cf266..64ef0c5 100644
--- a/.config/zsh/prompt.zsh
+++ b/.config/zsh/prompt.zsh
@@ -34,7 +34,7 @@ precmd_kernel_info() {
 	if [[ ${OS_ID} == "arch" ]] || [[ ${OS_ID_LIKE} == "arch" ]]; then
 		# Arch Linux removes the old kernel when updating, so we can
 		# just check to see if /usr/lib/modules/$(uname -r)/vmlinuz exists
-		if [[ -f /usr/lib/modules/$(uname -r)/vmlinuz ]]; then
+		if ! [[ -f /usr/lib/modules/$(uname -r)/vmlinuz ]]; then
 			# kernel update available
 			kernel_info_msg_0_="%F{red} reboot required %f"
 		fi