diff --git a/stm-firmware/include/reflow-controller/adc-meas.h b/stm-firmware/include/reflow-controller/adc-meas.h
index f0e764e..633fd5b 100644
--- a/stm-firmware/include/reflow-controller/adc-meas.h
+++ b/stm-firmware/include/reflow-controller/adc-meas.h
@@ -40,7 +40,7 @@
 
 /**
   * @brief Moving average filter weight used for fast regaulation. This is used when the measured resistance
-  * is more than 20 Ohms away from the current averaged value.
+  * is more than @ref ADC_PT1000_FILTER_UNSTABLE_DIFF Ohms away from the current averaged value.
   */
 #define ADC_PT1000_FILTER_WEIGHT_FAST 0.05