diff --git a/pywb/urlrewrite/rewriteinputreq.py b/pywb/urlrewrite/rewriteinputreq.py
index 25d3ac45..1c041d37 100644
--- a/pywb/urlrewrite/rewriteinputreq.py
+++ b/pywb/urlrewrite/rewriteinputreq.py
@@ -23,6 +23,9 @@ class RewriteInputRequest(DirectWSGIInputRequest):
 
     def get_full_request_uri(self):
         uri = self.splits.path
+        if not uri:
+            uri = '/'
+
         if self.splits.query:
             uri += '?' + self.splits.query