diff --git a/src/http_tracker_connection.cpp b/src/http_tracker_connection.cpp
index 1c441ea9d..c05459c87 100644
--- a/src/http_tracker_connection.cpp
+++ b/src/http_tracker_connection.cpp
@@ -139,7 +139,7 @@ namespace libtorrent
 			char str[1024];
 			const bool stats = tracker_req().send_stats;
 			snprintf(str, sizeof(str), "&peer_id=%s&port=%d&uploaded=%"PRId64
-				"&downloaded=%"PRId64"&left=%"PRId64"&corrupt="PRId64"&compact=1"
+				"&downloaded=%"PRId64"&left=%"PRId64"&corrupt=%"PRId64"&compact=1"
 				"&numwant=%d&key=%x&no_peer_id=1"
 				, escape_string((const char*)&tracker_req().pid[0], 20).c_str()
 				// the i2p tracker seems to verify that the port is not 0,