diff --git a/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp b/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp
index d89cd78b285..ca8db9b2154 100644
--- a/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp
+++ b/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp
@@ -33,9 +33,11 @@
 
 #include <emscripten.h>
 
+#if QT_CONFIG(thread)
 #if (__EMSCRIPTEN_major__ > 1 || __EMSCRIPTEN_minor__ > 38 || __EMSCRIPTEN_minor__ == 38 && __EMSCRIPTEN_tiny__ >= 22)
 #  define EMSCRIPTEN_HAS_ASYNC_RUN_IN_MAIN_RUNTIME_THREAD
 #endif
+#endif
 
 #ifdef EMSCRIPTEN_HAS_ASYNC_RUN_IN_MAIN_RUNTIME_THREAD
 #include <emscripten/threading.h>