--- anki-2.1.0beta25/aqt/mediasrv.py
+++ anki-2.1.0beta25/aqt/mediasrv.py
@@ -13,7 +13,7 @@
 # locate web folder in source/binary distribution
 def _getExportFolder():
     # running from source?
-    srcFolder = os.path.join(os.path.dirname(__file__), "..")
+    srcFolder = os.path.join(os.path.dirname(__file__), "..", "..", "..", "..", "share", "anki")
     webInSrcFolder = os.path.abspath(os.path.join(srcFolder, "web"))
     if os.path.exists(webInSrcFolder):
         return webInSrcFolder