diff --git a/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/InternalDisplay.cpp b/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/InternalDisplay.cpp
index e1894d1..8f52f5d 100644
--- a/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/InternalDisplay.cpp
+++ b/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/InternalDisplay.cpp
@@ -81,7 +81,7 @@ void InternalDisplay::handlePwmStateChange(uint8_t pin, bool state, uint16_t val
 {
     // If the output card is binded to the display and the current page is the output page
     // then update the respective output component
-    if (this->outputCard != nullptr)
+    if (this->outputCard == nullptr)
         return;
     if(this->currentPage == INTERNAL_DISPLAY_OUTPUT_PAGE) {
     // Update the output state