diff --git a/ggsn_tests/regen_makefile.sh b/ggsn_tests/regen_makefile.sh
index 4bdc87a..bd1b958 100755
--- a/ggsn_tests/regen_makefile.sh
+++ b/ggsn_tests/regen_makefile.sh
@@ -18,6 +18,7 @@
 	Native_FunctionDefs.cc
 	TCCConversion.cc
 	TCCInterface.cc
+	TCCEncoding.cc
 	TELNETasp_PT.cc
 	UDP_EncDec.cc
 "