diff --git a/src/subcommand_record.cpp b/src/subcommand_record.cpp
index f147db6918cea06d1dfa827486242a0d1dca0b66..d53852a5d62c493cb2046a59d3d4da57403b2d95 100644
--- a/src/subcommand_record.cpp
+++ b/src/subcommand_record.cpp
@@ -2214,7 +2214,7 @@ void SubCommandRecord::CollectSymbol(PerfRecordSample *sample)
         }
 
         serverPid = sample->GetServerPidof(i);
-        if (!isRoot_ && serverPid == devhostPid_) {
+        if (!isRoot_ && static_cast<uint32_t>(serverPid) == devhostPid_) {
             // in func UpdateDevHostCallChains add offset_ to ips, need sub offset_ when symboling
             if (sample->data_.ips[i] > offset_) {
                 sample->data_.ips[i] -= offset_;
@@ -2531,7 +2531,7 @@ void SubCommandRecord::UpdateDevHostCallChains(PerfEventRecord& record)
         const uint64_t BAD_IP_ADDRESS = 2;
         auto sample = static_cast<PerfRecordSample*>(&record);
         serverPid = sample->GetServerPidof(0);
-        if (serverPid == devhostPid_) {
+        if (static_cast<uint32_t>(serverPid) == devhostPid_) {
             sample->data_.ip += offset_;
         }
         for (u64 i = 0; i < sample->data_.nr; i++) {
@@ -2539,7 +2539,7 @@ void SubCommandRecord::UpdateDevHostCallChains(PerfEventRecord& record)
                 continue;
             }
             serverPid = sample->GetServerPidof(i);
-            if (serverPid == devhostPid_) {
+            if (static_cast<uint32_t>(serverPid) == devhostPid_) {
                 sample->data_.ips[i] += offset_;
             }
         }