1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 5b0306d391..701067d435 100644
--- a/Makefile
+++ b/Makefile
@@ -159,7 +159,7 @@ LIB_OBJS = \
 	object.o pack-check.o patch-delta.o path.o pkt-line.o \
 	quote.o read-cache.o refs.o run-command.o \
 	server-info.o setup.o sha1_file.o sha1_name.o strbuf.o \
-	tag.o tree.o usage.o config.o environment.o ctype.o \
+	tag.o tree.o usage.o config.o environment.o ctype.o copy.o \
 	$(DIFF_OBJS)
 
 LIBS = $(LIB_FILE)