diff --git a/src/llvm/moonrt_gui_linux.cpp b/src/llvm/moonrt_gui_linux.cpp
index eaaaafd..a8b6d7a 100644
--- a/src/llvm/moonrt_gui_linux.cpp
+++ b/src/llvm/moonrt_gui_linux.cpp
@@ -20,6 +20,10 @@
 #include <string>
 #include <unordered_map>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 // Detect WebKit version for API compatibility
 // webkit2gtk-4.1 deprecates webkit_web_view_run_javascript in favor of webkit_web_view_evaluate_javascript
 #if WEBKIT_MAJOR_VERSION > 2 || (WEBKIT_MAJOR_VERSION == 2 && WEBKIT_MINOR_VERSION >= 40)
@@ -491,7 +495,10 @@ MoonValue* moon_gui_create(MoonValue* options) {
     
     // Store window
     g_windows[win->id] = win;
-    
+
+    // By default, show window after webview finished loading
+    win->showPending = true;
+  
     return moon_int(win->id);
 }
 
@@ -1085,3 +1092,7 @@ void moon_gui_tray_on_click(MoonValue* callback) {}
 void moon_gui_show_window(MoonValue* show) {}
 
 #endif // MOON_PLATFORM_LINUX && !MOON_NO_GUI
+
+#ifdef __cplusplus
+}
+#endif