diff --git a/olcPixelGameEngine.h b/olcPixelGameEngine.h
index 93c1c64d..06fc7aeb 100644
--- a/olcPixelGameEngine.h
+++ b/olcPixelGameEngine.h
@@ -511,6 +511,13 @@ int main()
 	#endif
 #endif
 
+// File resolver for runtime FS access of emscripten builds
+#if defined(__EMSCRIPTEN__)
+#include <emscripten.h>
+#define FILE_RESOLVE(url, file) emscripten_wget(url, file); emscripten_sleep(0)
+#else
+#define FILE_RESOLVE(url, file)
+#endif
 
 // O------------------------------------------------------------------------------O
 // | PLATFORM-SPECIFIC DEPENDENCIES                                               |