diff --git a/src/filesystem.cpp b/src/filesystem.cpp
index b46af4c..d2ece9c 100644
--- a/src/filesystem.cpp
+++ b/src/filesystem.cpp
@@ -25,6 +25,7 @@
 #include "font.h"
 #include "util.h"
 #include "exception.h"
+#include "sharedstate.h"
 #include "boost-hash.h"
 #include "debugwriter.h"
 
@@ -336,6 +337,9 @@ FileSystem::FileSystem(const char *argv0,
 		}
 	}
 
+	if (rgssVer >= 2 && !contains(p->extensions[Audio], std::string("ogg")))
+		p->extensions[Audio].push_back("ogg");
+
 #if MIDI
 	p->extensions[Audio].push_back("mid");
 	p->extensions[Audio].push_back("midi");