diff --git a/usermods/GPU_Fan_Controller/GPU_Fan_Controller.cpp b/usermods/GPU_Fan_Controller/GPU_Fan_Controller.cpp
index d457c9aa..71a4dddf 100644
--- a/usermods/GPU_Fan_Controller/GPU_Fan_Controller.cpp
+++ b/usermods/GPU_Fan_Controller/GPU_Fan_Controller.cpp
@@ -176,7 +176,8 @@ class GPUFanControllerUsermod : public Usermod {
           if (doc.containsKey("curve-s4")) curveSpeed4 = constrain(doc["curve-s4"].as<int>(), 0, 100);
           if (doc.containsKey("curve-s5")) curveSpeed5 = constrain(doc["curve-s5"].as<int>(), 0, 100);
           
-          serializeConfig();
+          // Trigger WLED config save using the global flag
+          doSerializeConfig = true;
           updateFanSpeed();
         }
       );