diff --git a/debian/copyright b/debian/copyright
index 31b06fa..bb471cd 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -45,7 +45,7 @@
            src/llc.c
            src/encoding.cpp
            src/encoding.h
-           src/gprs_rlcmac.cpp
+           src/gprs_rlcmac.c
            src/ts_alloc.cpp
 Copyright: 2012 Ivan Klyuchnikov
            2012 Andreas Eversberg <jolly@eversberg.eu>