diff --git a/addons/modules/functions/fnc_moduleAttachFlag.sqf b/addons/modules/functions/fnc_moduleAttachFlag.sqf
index aa5be5f29..217c6a6ed 100644
--- a/addons/modules/functions/fnc_moduleAttachFlag.sqf
+++ b/addons/modules/functions/fnc_moduleAttachFlag.sqf
@@ -28,8 +28,8 @@ if !(alive _object) exitWith {
     [LSTRING(OnlyAlive)] call EFUNC(common,showMessage);
 };
 
-if !(_object isKindOf "AllVehicles") exitWith {
-    [LSTRING(OnlyVehicles)] call EFUNC(common,showMessage);
+if !(_object isKindOf "AllVehicles" || {_object isKindOf "FlagCarrier"}) exitWith {
+    [LSTRING(OnlyVehiclesOrFlags)] call EFUNC(common,showMessage);
 };
 
 private _flagsCache = +(uiNamespace getVariable QGVAR(flagsCache));
diff --git a/addons/modules/stringtable.xml b/addons/modules/stringtable.xml
index b83f4819c..a81d0304e 100644
--- a/addons/modules/stringtable.xml
+++ b/addons/modules/stringtable.xml
@@ -3441,6 +3441,9 @@
             <Chinese>單位必須是載具</Chinese>
             <Japanese>ユニットは車両である必要があります</Japanese>
         </Key>
+        <Key ID="STR_ZEN_Modules_OnlyVehiclesOrFlags">
+            <English>Unit must be a vehicle or flag</English>
+        </Key>
         <Key ID="STR_ZEN_Modules_OnlyAircraft">
             <English>The unit must be an aircraft</English>
             <Russian>Применимо только к воздушной технике</Russian>