diff --git a/lib/gssapi/Makefile.am b/lib/gssapi/Makefile.am
index 7fd52e30d..31a04d28e 100644
--- a/lib/gssapi/Makefile.am
+++ b/lib/gssapi/Makefile.am
@@ -265,8 +265,8 @@ check_PROGRAMS = test_acquire_cred $(TESTS)
 bin_PROGRAMS = gss
 noinst_PROGRAMS = test_cred test_kcred test_context test_ntlm
 
-test_context_SOURCES = test_context.c test_common.c
-test_ntlm_SOURCES = test_ntlm.c test_common.c
+test_context_SOURCES = test_context.c test_common.c test_common.h
+test_ntlm_SOURCES = test_ntlm.c test_common.c test_common.h
 
 test_ntlm_LDADD = \
 	$(top_builddir)/lib/ntlm/libheimntlm.la \