diff --git a/src/iris_relay/app.py b/src/iris_relay/app.py
index 2f56012..677840e 100644
--- a/src/iris_relay/app.py
+++ b/src/iris_relay/app.py
@@ -222,6 +222,8 @@ def on_get(self, req, resp, ical_key):
         """
         try:
             path = self.base_url + '/api/v0/ical/' + ical_key
+            if req.query_string:
+                path += '?%s' % req.query_string
             result = self.oncall_client.get(path)
         except MaxRetryError as ex:
             logger.error(ex)