diff --git a/be/src/exec/pipeline/dependency.h b/be/src/exec/pipeline/dependency.h
index dec1d3aaeea7b4..f7a90ea0c34cd4 100644
--- a/be/src/exec/pipeline/dependency.h
+++ b/be/src/exec/pipeline/dependency.h
@@ -749,7 +749,8 @@ struct LocalExchangeSharedState : public BasicSharedState {
 
     void sub_total_mem_usage(size_t delta) {
         auto prev_usage = mem_usage.fetch_sub(delta);
-        DCHECK_GE(prev_usage - delta, 0) << "prev_usage: " << prev_usage << " delta: " << delta;
+        DCHECK_GE(prev_usage, cast_set<int64_t>(delta))
+                << "prev_usage: " << prev_usage << " delta: " << delta;
         if (cast_set<int64_t>(prev_usage - delta) <= _buffer_mem_limit) {
             sink_deps.front()->set_ready();
         }