diff --git a/pidd.sh b/pidd.sh
index e947824..046b2f7 100644
--- a/pidd.sh
+++ b/pidd.sh
@@ -72,7 +72,8 @@ pidd_set_environment_variables() {
 	esac
 	# set operating system version
 	case "${PIDD_OS_ID}" in
-	"${PIDD_OS_ALMA}" | "${PIDD_OS_ARCH}" | "${PIDD_OS_FEDORA}" | "${PIDD_OS_ROCKY}")
+	"${PIDD_OS_ALMA}" | "${PIDD_OS_FEDORA}" | "${PIDD_OS_ROCKY}" | \
+		"${PIDD_OS_ARCH}")
 		PIDD_OS_VERSION=$(pidd_grep_os VERSION_ID |
 			sed "s|^\([0-9]\+\)\..*|\1|")
 		;;