diff --git a/lib/gssapi/gssapi_locl.h b/lib/gssapi/gssapi_locl.h
index 73a5096e1..f928e2510 100644
--- a/lib/gssapi/gssapi_locl.h
+++ b/lib/gssapi/gssapi_locl.h
@@ -45,6 +45,7 @@
 #include <assert.h>
 
 #include "cfx.h"
+#include "arcfour.h"
 
 /*
  *
diff --git a/lib/gssapi/krb5/gssapi_locl.h b/lib/gssapi/krb5/gssapi_locl.h
index 73a5096e1..f928e2510 100644
--- a/lib/gssapi/krb5/gssapi_locl.h
+++ b/lib/gssapi/krb5/gssapi_locl.h
@@ -45,6 +45,7 @@
 #include <assert.h>
 
 #include "cfx.h"
+#include "arcfour.h"
 
 /*
  *