diff --git a/sysfs.hpp b/sysfs.hpp
index 70568cd..86be6da 100644
--- a/sysfs.hpp
+++ b/sysfs.hpp
@@ -129,7 +129,8 @@
                 const std::string& id,
                 const std::string& sensor,
                 size_t retries,
-                std::chrono::milliseconds delay) const;
+                std::chrono::milliseconds delay,
+                bool isOCC = false) const;
 
         /** @brief Perform formatted hwmon sysfs write.
          *