diff --git a/tasmota/my_user_config.h b/tasmota/my_user_config.h
index 9c85c7549..954ba54c2 100644
--- a/tasmota/my_user_config.h
+++ b/tasmota/my_user_config.h
@@ -321,6 +321,7 @@
 #define LIGHT_VIRTUAL_CT       false             // [SetOption106] Virtual CT - Creates a virtual White ColorTemp for RGBW lights
 #define LIGHT_VIRTUAL_CT_CW    false             // [SetOption107] Virtual CT Channel - signals whether the hardware white is cold CW (true) or warm WW (false)
 #define LIGHT_VIRTUAL_CT_POINTS 3                // Number of reference points for Virtual CT (min 2, default 3)
+#define USE_AC_ZERO_CROSS_DIMMER                 // Requires USE_COUNTER and USE_LIGHT
 
 // -- Energy --------------------------------------
 #define ENERGY_VOLTAGE_ALWAYS  false             // [SetOption21] Enable show voltage even if powered off