Index: compiled/debug.h
===================================================================
--- a/compiled/debug.h
+++ b/compiled/debug.h
@@ -46,23 +46,27 @@
   {
     LogError(str);
   }
 };
 
 static console_type console;
 
 #if defined(DEBUG)
-inline void assert(bool condition, const String& str)
+#define assert(condition) \
+  assert2(condition, u"Assertion failed: "#condition""_str)
+
+inline void assert2(bool condition, const String& str)
 {
   if (!condition)
     console.error(str);
 }
 #else
-#define assert(condition, str)
+#define assert(condition)
+#define assert2(condition, str)
 #endif
 
 #if defined(__EMSCRIPTEN_TRACING__)
 #include <emscripten/trace.h>
 
 inline void init_tracing()
 {
   emscripten_trace_configure("http://127.0.0.1:5000/", "MyApplication");