diff --git a/server/modules/filter/cache/cache_storage_api.h b/server/modules/filter/cache/cache_storage_api.h
index 479420fb8..3d23ba842 100644
--- a/server/modules/filter/cache/cache_storage_api.h
+++ b/server/modules/filter/cache/cache_storage_api.h
@@ -29,7 +29,8 @@ typedef enum cache_result_bits
     CACHE_RESULT_ERROR            = 0x03,
     CACHE_RESULT_OUT_OF_RESOURCES = 0x04,
 
-    CACHE_RESULT_STALE            = 0x10000 /*< Possibly combined with OK and NOT_FOUND. */
+    CACHE_RESULT_STALE            = 0x10000, /*< Possibly combined with OK and NOT_FOUND. */
+    CACHE_RESULT_DISCARDED        = 0x20000, /*< Possibly combined with NOT_FOUND. */
 } cache_result_bits_t;
 
 typedef uint32_t cache_result_t;
@@ -39,6 +40,7 @@ typedef uint32_t cache_result_t;
 #define CACHE_RESULT_IS_ERROR(result)            (result & CACHE_RESULT_ERROR)
 #define CACHE_RESULT_IS_OUT_OF_RESOURCES(result) (result & CACHE_RESULT_OUT_OF_RESOURCES)
 #define CACHE_RESULT_IS_STALE(result)            (result & CACHE_RESULT_STALE)
+#define CACHE_RESULT_IS_DISCARDED(result)        (result & CACHE_RESULT_DISCARDED)
 
 typedef enum cache_flags
 {
diff --git a/server/modules/filter/cache/storage/storage_inmemory/inmemorystorage.cc b/server/modules/filter/cache/storage/storage_inmemory/inmemorystorage.cc
index a3163d23f..6b61ae49e 100644
--- a/server/modules/filter/cache/storage/storage_inmemory/inmemorystorage.cc
+++ b/server/modules/filter/cache/storage/storage_inmemory/inmemorystorage.cc
@@ -149,6 +149,7 @@ cache_result_t InMemoryStorage::do_get_value(const CACHE_KEY& key, uint32_t flag
         if (is_hard_stale)
         {
             m_entries.erase(i);
+            result |= CACHE_RESULT_DISCARDED;
         }
         else if (!is_soft_stale || include_stale)
         {