diff --git a/stm-firmware/pid-controller.c b/stm-firmware/pid-controller.c
index 20658e4..ac71a68 100644
--- a/stm-firmware/pid-controller.c
+++ b/stm-firmware/pid-controller.c
@@ -89,7 +89,8 @@ float pid_sample(struct pid_controller *pid, float deviation)
 	}
 
 	/* Calculate derivative part */
-	pid->derivate = pid->k_deriv_t * (deviation - pid->last_in) + pid->k_inv_deriv_t * pid->derivate;
+	pid->derivate = pid->k_deriv_t * (deviation - pid->last_in) +
+			pid->k_inv_deriv_t * pid->derivate;
 
 	output += pid->derivate;
 	output += pid->integral;