diff --git a/README.md b/README.md
index 5390760..bfa325b 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 
 - BelongsTo AircraftType
 - BelongsToMany AircraftTypeGroup
-- **TODO** BelongsTo Airport (External DB)
+- **TODO, 2x** BelongsTo Airport (External DB)
 
 ## AircraftTypeGroup