diff --git a/lms/djangoapps/mobile_api/middleware.py b/lms/djangoapps/mobile_api/middleware.py
index d4a2d0adb253..5fbfb23f4c80 100644
--- a/lms/djangoapps/mobile_api/middleware.py
+++ b/lms/djangoapps/mobile_api/middleware.py
@@ -99,7 +99,7 @@ def _get_version_info(self, request):
                 request_cache_dict[self.USER_APP_VERSION] = platform.version
                 last_supported_date_cache_key = self._get_cache_key_name(
                     self.LAST_SUPPORTED_DATE_HEADER,
-                    platform.version
+                    platform.NAME + platform.version
                 )
                 latest_version_cache_key = self._get_cache_key_name(self.LATEST_VERSION_HEADER, platform.NAME)
                 cached_data = cache.get_many([last_supported_date_cache_key, latest_version_cache_key])