diff --git a/python/sglang/srt/managers/scheduler.py b/python/sglang/srt/managers/scheduler.py
index a62d7fab7..ef9df64e4 100644
--- a/python/sglang/srt/managers/scheduler.py
+++ b/python/sglang/srt/managers/scheduler.py
@@ -2086,12 +2086,24 @@ class Scheduler(
                 self.decode_mem_cache_buf_multiplier
             )
         ) or (TEST_RETRACT and self.forward_ct % TEST_RETRACT_INTERVAL == 0):
-            old_available_tokens = self.token_to_kv_pool_allocator.available_size()
+            if self.is_hybrid_swa:
+                old_available_tokens = min(
+                    self.token_to_kv_pool_allocator.full_available_size(),
+                    self.token_to_kv_pool_allocator.swa_available_size(),
+                )
+            else:
+                old_available_tokens = self.token_to_kv_pool_allocator.available_size()
             old_ratio = self.new_token_ratio
             retracted_reqs, new_token_ratio, reqs_to_abort = batch.retract_decode(
                 self.server_args, self.decode_mem_cache_buf_multiplier
             )
-            new_available_tokens = self.token_to_kv_pool_allocator.available_size()
+            if self.is_hybrid_swa:
+                new_available_tokens = min(
+                    self.token_to_kv_pool_allocator.full_available_size(),
+                    self.token_to_kv_pool_allocator.swa_available_size(),
+                )
+            else:
+                new_available_tokens = self.token_to_kv_pool_allocator.available_size()
             new_token_gained = new_available_tokens - old_available_tokens
 
             self.num_retracted_reqs = len(retracted_reqs)