diff --git a/libpldmresponder/bios_integer_attribute.cpp b/libpldmresponder/bios_integer_attribute.cpp
index 43a94d2..4a23ace 100644
--- a/libpldmresponder/bios_integer_attribute.cpp
+++ b/libpldmresponder/bios_integer_attribute.cpp
@@ -122,7 +122,7 @@
 
 uint64_t BIOSIntegerAttribute::getAttrValue(const PropertyValue& propertyValue)
 {
-    uint64_t value;
+    uint64_t value = 0;
     if (dBusMap->propertyType == "uint8_t")
     {
         value = std::get<uint8_t>(propertyValue);
@@ -155,6 +155,12 @@
     {
         value = std::get<double>(propertyValue);
     }
+    else
+    {
+        std::cerr << "Unsupported property type for getAttrValue: "
+                  << dBusMap->propertyType << std::endl;
+        throw std::invalid_argument("dbus type error");
+    }
     return value;
 }