diff --git a/deluge/core/core.py b/deluge/core/core.py
index bd767f14e..fa55ba78a 100644
--- a/deluge/core/core.py
+++ b/deluge/core/core.py
@@ -76,6 +76,11 @@ class Core(component.Component):
         # Start the libtorrent session
         log.info("Starting libtorrent %s session..", lt.version)
 
+        # We must depend on libtorrent >= 0.14.9 due to over-downloading bug
+        if lt.version < 0.14.9:
+            log.error("This version of Deluge requires libtorrent >= 0.14.9.")
+            sys.exit(1)
+            
         # Create the client fingerprint
         version = [int(value.split("-")[0]) for value in deluge.common.get_version().split(".")]
         while len(version) < 4: