diff --git a/src/Makefile.am b/src/Makefile.am
index ab72aa3..3c2c78c 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -45,7 +45,8 @@
 	tbf.cpp \
 	bts.cpp \
 	poll_controller.cpp \
-	encoding.cpp
+	encoding.cpp \
+	ta.cpp
 
 if ENABLE_SYSMOBTS
 libgprs_la_SOURCES += \