diff --git a/monitor/fan_defs.hpp b/monitor/fan_defs.hpp
new file mode 100644
index 0000000..2cfd44a
--- /dev/null
+++ b/monitor/fan_defs.hpp
@@ -0,0 +1,6 @@
+#pragma once
+
+#include "types.hpp"
+
+extern const std::vector<phosphor::fan::monitor::FanDefinition>
+fanDefinitions;