diff --git a/include/ipmitool/helper.h b/include/ipmitool/helper.h
index 9d92ede..1a464a8 100644
--- a/include/ipmitool/helper.h
+++ b/include/ipmitool/helper.h
@@ -63,7 +63,7 @@
 struct ipmi_intf;
 
 struct valstr {
-	uint16_t val;
+	uint32_t val;
 	const char * str;
 };
 struct oemvalstr {