diff --git a/include/smbiosmdrv2handler.hpp b/include/smbiosmdrv2handler.hpp
index 71f3677..8356d26 100644
--- a/include/smbiosmdrv2handler.hpp
+++ b/include/smbiosmdrv2handler.hpp
@@ -151,7 +151,7 @@
     DataIdStruct dataSetId;
     uint8_t validFlag;
     uint32_t dataLength;
-    uint32_t dataVersion;
+    uint8_t dataVersion;
     uint32_t timeStamp;
 };
 
diff --git a/src/smbiosmdrv2handler.cpp b/src/smbiosmdrv2handler.cpp
index 52cd78f..e0d1159 100644
--- a/src/smbiosmdrv2handler.cpp
+++ b/src/smbiosmdrv2handler.cpp
@@ -447,7 +447,7 @@
     sdbusplus::message::message method = bus->new_method_call(
         service.c_str(), mdrv2Path, mdrv2Interface, "GetDataInformation");
 
-    method.append(idIndex);
+    method.append(static_cast<uint8_t>(idIndex));
 
     std::vector<uint8_t> res;
     try