diff --git a/api/v1/swagger/paths/patrons_image.yaml b/api/v1/swagger/paths/patrons_image.yaml
index d9bd563fb1..2b73245004 100644
--- a/api/v1/swagger/paths/patrons_image.yaml
+++ b/api/v1/swagger/paths/patrons_image.yaml
@@ -16,6 +16,10 @@
         schema:
           type: string
           format: binary
+      "400":
+        description: Bad request
+        schema:
+          $ref: "../swagger.yaml#/definitions/error"
       "401":
         description: Authentication required
         schema: