diff --git a/src/lgfx/v1/platforms/esp32/common.cpp b/src/lgfx/v1/platforms/esp32/common.cpp
index 0b98ddb2..3e71dcf8 100644
--- a/src/lgfx/v1/platforms/esp32/common.cpp
+++ b/src/lgfx/v1/platforms/esp32/common.cpp
@@ -715,7 +715,7 @@ namespace lgfx
       };
       cpp::result<state_t, error_t> state;
 
-      xSemaphoreHandle mtx = nullptr;
+      SemaphoreHandle_t mtx = nullptr;
 
       void lock(uint32_t msec = portMAX_DELAY) {
         if (mtx == nullptr) {