diff --git a/paths/customer_careprogram.yaml b/paths/customer_careprogram.yaml
index fc24c3a..1842b1d 100644
--- a/paths/customer_careprogram.yaml
+++ b/paths/customer_careprogram.yaml
@@ -10,8 +10,9 @@ get:
   parameters:
     - name: refDate
       in: query
-      $ref: ../schemas/date.yaml
       description: If omitted, today is taken.
+      schema:
+        $ref: ../schemas/date.yaml
   responses:
     '200':
       description: All practices for which the care group takes responsibility.