diff --git a/src/main.rs b/src/main.rs
index 19e6087..1d1ef0b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -308,7 +308,7 @@ fn service(config: Config) -> std::io::Result<()> {
                 continue;
             }
 
-            if let Err(e) = controller.hw_mon.set_speed(target_pwm) {
+            if let Err(e) = controller.hw_mon.set_speed(target_pwm as f32) {
                 log::error!("Failed to change speed to {}. {:?}", target_pwm, e);
             }
             controller.last_temp = gpu_temp;