diff --git a/hwmonio.hpp b/hwmonio.hpp
index b254b0f..619d6ad 100644
--- a/hwmonio.hpp
+++ b/hwmonio.hpp
@@ -57,8 +57,7 @@
                 const std::string& id,
                 const std::string& sensor,
                 size_t retries,
-                std::chrono::milliseconds delay,
-                bool isOCC = false) const;
+                std::chrono::milliseconds delay) const;
 
         /** @brief Perform formatted hwmon sysfs write.
          *