diff --git a/ERD/postgsail.md b/ERD/postgsail.md
index 7468d6c..639af66 100644
--- a/ERD/postgsail.md
+++ b/ERD/postgsail.md
@@ -1,6 +1,5 @@
-ERD 
-
 ```mermaid
+erDiagram
     api_logbook {
         text _from
         double_precision _from_lat