diff --git a/code/API_definitions/MEC exposure and experience management.yaml b/code/API_definitions/MEC exposure and experience management.yaml
index e00921e..4ac08cc 100644
--- a/code/API_definitions/MEC exposure and experience management.yaml	
+++ b/code/API_definitions/MEC exposure and experience management.yaml	
@@ -1,3 +1,4 @@
+---
 openapi: 3.0.3
 ############################################################################
 #                                     API info                             #