diff --git a/python/sglang/srt/managers/scheduler.py b/python/sglang/srt/managers/scheduler.py
index 3ff6eaf57..7dd17793a 100644
--- a/python/sglang/srt/managers/scheduler.py
+++ b/python/sglang/srt/managers/scheduler.py
@@ -2333,9 +2333,8 @@ class Scheduler(
 
     def release_memory_occupation(self, recv_req: ReleaseMemoryOccupationReqInput):
         tags = recv_req.tags
-        import subprocess
 
-        if tags is None:
+        if tags is None or len(tags) == 0:
             tags = [GPU_MEMORY_TYPE_WEIGHTS, GPU_MEMORY_TYPE_KV_CACHE]
 
         if GPU_MEMORY_TYPE_KV_CACHE in tags:
@@ -2353,6 +2352,7 @@ class Scheduler(
 
     def resume_memory_occupation(self, recv_req: ResumeMemoryOccupationReqInput):
         tags = recv_req.tags
+
         if tags is None or len(tags) == 0:
             tags = [GPU_MEMORY_TYPE_WEIGHTS, GPU_MEMORY_TYPE_KV_CACHE]