diff --git a/core/src/gui/menus/display.cpp b/core/src/gui/menus/display.cpp
index ee730848..b9552987 100644
--- a/core/src/gui/menus/display.cpp
+++ b/core/src/gui/menus/display.cpp
@@ -110,6 +110,7 @@ namespace displaymenu {
         gui::waterfall.setFFTHold(fftHold);
         fftSmoothing = core::configManager.conf["fftSmoothing"];
         fftSmoothingSpeed = core::configManager.conf["fftSmoothingSpeed"];
+        gui::waterfall.setFFTSmoothing(fftSmoothing);
         updateFFTSpeeds();
 
         // Define and load UI scales
@@ -233,4 +234,4 @@ namespace displaymenu {
             ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "Restart required.");
         }
     }
-}
\ No newline at end of file
+}