diff --git a/check_systemd_service.sh b/check_systemd_service.sh
index 2780c7e..f3e1858 100755
--- a/check_systemd_service.sh
+++ b/check_systemd_service.sh
@@ -48,7 +48,10 @@ fi
 active=$(systemctl is-active "$UNIT")
 substate=$(systemctl show "$UNIT" --property=SubState --value)
 
-if [ "$active" != "active" ] || { [ "$substate" = "exited" ] && [ "$IS_TIMER" = false ]; }; then
+if [ "$active" = "activating" ]; then
+    echo "WARNING - $UNIT is activating"
+    exit 1
+elif [ "$active" != "active" ] || { [ "$substate" = "exited" ] && [ "$IS_TIMER" = false ]; }; then
     echo "CRITICAL - $UNIT is not active"
     exit 2
 fi