diff --git a/Makefile.in b/Makefile.in
index c52f654..217d0a0 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -17,7 +17,7 @@
           buckets/chunk_buckets.lo buckets/bwtp_buckets.lo \
           incoming.lo outgoing.lo \
           auth/auth.lo auth/auth_basic.lo auth/auth_digest.lo \
-          auth/auth_kerb.lo
+          auth/auth_kerb.lo auth/auth_kerb_gss.lo
 
 TARGET_LIB=libserf-$(SERF_MAJOR_VERSION).la