thodg/got

diff --git a/regress/packfiles/Makefile b/regress/packfiles/Makefile
index 805d30c..3c6b737 100644
--- a/regress/packfiles/Makefile
+++ b/regress/packfiles/Makefile
@@ -1,7 +1,8 @@
 .PATH:${.CURDIR}/../../lib
 
 PROG = packfile_test
-SRCS = error.c pack.c repository.c object.c path.c sha1.c packfile_test.c
+SRCS = error.c pack.c repository.c object.c path.c sha1.c \
+	delta.c packfile_test.c
 
 CPPFLAGS = -I${.CURDIR}/../../include -I${.CURDIR}/../../lib
 LDADD = -lutil -lz