diff --git a/fan_speed.cpp b/fan_speed.cpp
index 74bbea3..df6618c 100644
--- a/fan_speed.cpp
+++ b/fan_speed.cpp
@@ -1,6 +1,7 @@
 #include "fan_speed.hpp"
 #include "hwmon.hpp"
 #include "sysfs.hpp"
+#include <experimental/filesystem>
 
 namespace hwmon
 {
@@ -23,4 +24,28 @@
     return FanSpeedObject::target(value);
 }
 
+
+void FanSpeed::enable()
+{
+    namespace fs = std::experimental::filesystem;
+
+    auto path = sysfsRoot + "/" + instance;
+    auto fullPath = make_sysfs_path(path,
+                                    type::pwm,
+                                    id,
+                                    entry::enable);
+
+    if (fs::exists(fullPath))
+    {
+        //This class always uses RPM mode
+        writeSysfsWithCallout(enable::rpmMode,
+                              sysfsRoot,
+                              instance,
+                              type::pwm,
+                              id,
+                              entry::enable);
+    }
+}
+
+
 } // namespace hwmon