diff --git a/packages/server/specs/openapi.json b/packages/server/specs/openapi.json
index ada160d75..163dbbf0a 100644
--- a/packages/server/specs/openapi.json
+++ b/packages/server/specs/openapi.json
@@ -37,7 +37,7 @@
       },
       "appId": {
         "in": "header",
-        "name": "appId",
+        "name": "x-budibase-app-id",
         "required": true,
         "description": "The ID of the app which this request is targeting.",
         "schema": {
diff --git a/packages/server/specs/openapi.yaml b/packages/server/specs/openapi.yaml
index 18a5d13e7..efa75f53b 100644
--- a/packages/server/specs/openapi.yaml
+++ b/packages/server/specs/openapi.yaml
@@ -26,7 +26,7 @@ components:
         type: string
     appId:
       in: header
-      name: appId
+      name: x-budibase-app-id
       required: true
       description: The ID of the app which this request is targeting.
       schema:
diff --git a/packages/server/specs/parameters.js b/packages/server/specs/parameters.js
index 0adad6953..f1382ffe7 100644
--- a/packages/server/specs/parameters.js
+++ b/packages/server/specs/parameters.js
@@ -20,7 +20,7 @@ exports.rowId = {
 
 exports.appId = {
   in: "header",
-  name: "appId",
+  name: "x-budibase-app-id",
   required: true,
   description: "The ID of the app which this request is targeting.",
   schema: {