diff --git a/api-daemon/pvcapid/flaskapi.py b/api-daemon/pvcapid/flaskapi.py
index 7c481e46..4ed73d30 100755
--- a/api-daemon/pvcapid/flaskapi.py
+++ b/api-daemon/pvcapid/flaskapi.py
@@ -3347,6 +3347,12 @@ class API_Storage_Ceph_Volume_Element_Upload(Resource):
         tags:
           - storage / ceph
         parameters:
+          - in: requestBody
+            content:
+              application/octet-stream:
+                schema:
+                  type: string
+                  format: binary
           - in: query
             name: image_format
             type: string
@@ -3359,11 +3365,6 @@ class API_Storage_Ceph_Volume_Element_Upload(Resource):
               - qed
               - vdi
               - vpc
-          - in: formdata
-            name: file
-            type: binary
-            required: true
-            description: The raw binary contents of the file
         responses:
           200:
             description: OK
diff --git a/docs/manuals/swagger.json b/docs/manuals/swagger.json
index 475782a6..76b006d9 100644
--- a/docs/manuals/swagger.json
+++ b/docs/manuals/swagger.json
@@ -4695,6 +4695,17 @@
             "post": {
                 "description": "",
                 "parameters": [
+                    {
+                        "content": {
+                            "application/octet-stream": {
+                                "schema": {
+                                    "format": "binary",
+                                    "type": "string"
+                                }
+                            }
+                        },
+                        "in": "requestBody"
+                    },
                     {
                         "description": "The type of source image file",
                         "enum": [
@@ -4709,13 +4720,6 @@
                         "name": "image_format",
                         "required": true,
                         "type": "string"
-                    },
-                    {
-                        "description": "The raw binary contents of the file",
-                        "in": "formdata",
-                        "name": "file",
-                        "required": true,
-                        "type": "binary"
                     }
                 ],
                 "responses": {