diff --git a/cmake/QtPublicWasmToolchainHelpers.cmake b/cmake/QtPublicWasmToolchainHelpers.cmake
index ed216f1bce4..4ed223ed8ac 100644
--- a/cmake/QtPublicWasmToolchainHelpers.cmake
+++ b/cmake/QtPublicWasmToolchainHelpers.cmake
@@ -81,12 +81,16 @@ function(__qt_internal_get_qt_build_emsdk_version out_var)
     endif()
     if(EXISTS "${WASM_BUILD_DIR}/src/corelib/global/qconfig.h")
         file(READ "${WASM_BUILD_DIR}/src/corelib/global/qconfig.h" ver)
-    else()
+    elseif(EXISTS "${WASM_BUILD_DIR}/include/QtCore/qconfig.h")
         file(READ "${WASM_BUILD_DIR}/include/QtCore/qconfig.h" ver)
+    else()
+        message("qconfig.h not found, unable to determine Qt build Emscripten version")
+    endif()
+    if (ver)
+        string(REGEX MATCH "#define QT_EMCC_VERSION.\"[0-9]+\\.[0-9]+\\.[0-9]+\"" emOutput ${ver})
+        string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" build_emcc_version "${emOutput}")
+        set(${out_var} "${build_emcc_version}" PARENT_SCOPE)
     endif()
-    string(REGEX MATCH "#define QT_EMCC_VERSION.\"[0-9]+\\.[0-9]+\\.[0-9]+\"" emOutput ${ver})
-    string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" build_emcc_version "${emOutput}")
-    set(${out_var} "${build_emcc_version}" PARENT_SCOPE)
 endfunction()
 
 function(_qt_test_emscripten_version)