diff --git a/kadmin/Makefile.am b/kadmin/Makefile.am
index 95efa2869..fda3bf795 100644
--- a/kadmin/Makefile.am
+++ b/kadmin/Makefile.am
@@ -2,7 +2,7 @@
 
 include $(top_srcdir)/Makefile.am.common
 
-AM_CPPFLAGS += $(INCLUDE_libintl) $(INCLUDE_readline) $(INCLUDE_hcrypto) -I$(srcdir)/../lib/krb5
+AM_CPPFLAGS += $(INCLUDE_libintl) $(INCLUDE_readline) $(INCLUDE_hcrypto) -I$(srcdir)/../lib/krb5 -I$(top_builddir)/include/gssapi
 
 sbin_PROGRAMS = kadmin