diff --git a/cache/src/tango_cache_pending.cpp b/cache/src/tango_cache_pending.cpp
index 2cfece3..8d803d9 100644
--- a/cache/src/tango_cache_pending.cpp
+++ b/cache/src/tango_cache_pending.cpp
@@ -226,8 +226,10 @@ void get_response_freshness(const struct tfe_http_half *response, struct respons
     field_value = tfe_http_std_field_read(response, TFE_HTTP_DATE);
     if (field_value != NULL)
     {
-        assert(is_standard_gmt_format(field_value));
-        freshness->date = read_GMT_time(field_value);;
+        if(is_standard_gmt_format(field_value))
+		{
+        	freshness->date = read_GMT_time(field_value);;
+        }
     }
     field_value = tfe_http_std_field_read(response, TFE_HTTP_LAST_MODIFIED);
     if (field_value != NULL && is_standard_gmt_format(field_value))