diff --git a/sw/airborne/arch/stm32/TIM_usage_list.txt b/sw/airborne/arch/stm32/TIM_usage_list.txt
index aa31faa86e..8e507dd9eb 100644
--- a/sw/airborne/arch/stm32/TIM_usage_list.txt
+++ b/sw/airborne/arch/stm32/TIM_usage_list.txt
@@ -4,14 +4,16 @@ timer       subsystem/type (config options)
 (advanced timers using RCC_APB1)
 TIM1        adc (if USE_AD_TIM1)
             radio_control/ppm (if USE_PPM_TIM1, PPM input on SERVO6 pin)
+            actuators/pwm (if PWM_USE_TIM1)
 
-TIM8        none
+TIM8        radio_control/ppm (if USE_PPM_TIM8)
 
 (non-advanced timers using RCC_APB2)
-TIM2        adc (default)
+TIM2        adc (if USE_AD_TIM2, default)
             radio_control/ppm (if USE_PPM_TIM2, PPM input on UART1_RX pin)
+            actuators/pwm (if PWM_USE_TIM2)
 
-TIM3        actuators/pwm (PWM1..4)
+TIM3        actuators/pwm (if PWM_USE_TIM3, PWM1..4 on LisaM)
 
 TIM4        adc (if USE_AD_TIM4)
             actuators/pwm (PWM6..7 on LisaL)
@@ -22,3 +24,7 @@ TIM5        actuators/pwm (PWM/Servos 5..6 on LisaM)
 TIM6        radio_control/spektrum
 
 TIM7        none
+
+TIM9        actuators/pwm (if PWM_USE_TIM9)
+
+TIM12       actuators/pwm (if PWM_USE_TIM12)