diff --git a/vllm/config/cache.py b/vllm/config/cache.py
index b899502165..9ce836ef15 100644
--- a/vllm/config/cache.py
+++ b/vllm/config/cache.py
@@ -212,7 +212,7 @@ class CacheConfig:
     mamba_block_size is a multiple of replayssm_buffer_len, but this is not
     required."""
     use_recoverssm: bool = field(default=False, init=False)
-    """Whether Kimi-K3 KDA uses RecoverSSM speculative decode."""
+    """Whether RecoverSSM speculative decode is used (Kimi-K3 KDA; Qwen4Exp GDN and PLE)."""
 
     # Will be set after profiling.
     num_gpu_blocks: int | None = field(default=None, init=False)