diff --git a/include/commandutils.hpp b/include/commandutils.hpp
index 5658c1c..f52b9b7 100644
--- a/include/commandutils.hpp
+++ b/include/commandutils.hpp
@@ -97,6 +97,8 @@
     }
 }
 
+std::optional<std::pair<uint8_t, uint8_t>> getMbFruDevice(void);
+
 namespace ipmi
 {
 using DbusVariant = std::variant<std::string, bool, uint8_t, uint16_t, int16_t,