diff --git a/src/component/ComponentSettings.tsx b/src/component/ComponentSettings.tsx
index 44aef71..db0e5ad 100644
--- a/src/component/ComponentSettings.tsx
+++ b/src/component/ComponentSettings.tsx
@@ -518,7 +518,8 @@ export default function ComponentSettings(props: Props) {
   }
 
   const supportsExpansion = () => {
-    return (formComponent.settings.type === quack.ComponentType.COMPONENT_TYPE_GRAIN_CABLE &&
+    return ((formComponent.settings.type === quack.ComponentType.COMPONENT_TYPE_GRAIN_CABLE ||
+            formComponent.settings.type === quack.ComponentType.COMPONENT_TYPE_DRAGER_GAS_DONGLE) &&
             formComponent.settings.addressType === quack.AddressType.ADDRESS_TYPE_I2C)
   }