diff --git a/library/cloud/digital_ocean b/library/cloud/digital_ocean
index bd975cf1b9..947582174e 100644
--- a/library/cloud/digital_ocean
+++ b/library/cloud/digital_ocean
@@ -90,6 +90,7 @@ options:
 
 notes:
   - Two environment variables can be used, DO_CLIENT_ID and DO_API_KEY.
+requirements: [ dopy ]
 '''