diff --git a/lib/krb5/Makefile.am b/lib/krb5/Makefile.am
index 7927c8735..9b7442a0d 100644
--- a/lib/krb5/Makefile.am
+++ b/lib/krb5/Makefile.am
@@ -265,7 +265,7 @@ nodist_include_HEADERS = krb5_err.h heim_err.h k524_err.h
 
 # XXX use nobase_include_HEADERS = krb5/locate_plugin.h
 krb5dir = $(includedir)/krb5
-krb5_HEADERS = locate_plugin.h
+krb5_HEADERS = locate_plugin.h send_to_kdc_plugin.h
 
 build_HEADERZ = \
 	heim_threads.h \