diff --git a/tmtcservices/CommandingServiceBase.cpp b/tmtcservices/CommandingServiceBase.cpp
index 4277de6f..0c5f5eab 100644
--- a/tmtcservices/CommandingServiceBase.cpp
+++ b/tmtcservices/CommandingServiceBase.cpp
@@ -267,7 +267,7 @@ ReturnValue_t CommandingServiceBase::sendTmPacket(uint8_t subservice,
         object_id_t objectId, const uint8_t *data, size_t dataLen) {
     uint8_t buffer[sizeof(object_id_t)];
     uint8_t* pBuffer = buffer;
-    uint32_t size = 0;
+    size_t size = 0;
     SerializeAdapter::serialize(&objectId, &pBuffer, &size,
                 sizeof(object_id_t), SerializeIF::Endianness::BIG);
     TmPacketStored tmPacketStored(this->apid, this->service, subservice,