diff --git a/pywb/rewrite/templateview.py b/pywb/rewrite/templateview.py
index 518df18b..208c2f4c 100644
--- a/pywb/rewrite/templateview.py
+++ b/pywb/rewrite/templateview.py
@@ -196,11 +196,11 @@ def get_locale_prefixes(context):
             orig_prefix = environ.get('pywb.app_prefix', '')
             coll = environ.get('SCRIPT_NAME', '')
 
-            if orig_prefix:
+            if orig_prefix and coll.startswith(orig_prefix):
                 coll = coll[len(orig_prefix):]
 
             curr_loc = environ.get('pywb_lang', '')
-            if curr_loc:
+            if curr_loc and coll.startswith('/' + curr_loc):
                 coll = coll[len(curr_loc) + 1:]
 
             for locale in loc_map.keys():