diff --git a/src/dexed.cpp b/src/dexed.cpp
index 6717b6d..331ef30 100644
--- a/src/dexed.cpp
+++ b/src/dexed.cpp
@@ -161,7 +161,7 @@ void Dexed::set_params(void)
   }
   if(fx.uiGain!=f_gain)
   {
-    fx.uiGain=f_gain-0.25;
+    fx.uiGain=f_gain*0.8;
     refreshVoice=true;
   }