diff --git a/include/make_crypto.c b/include/make_crypto.c
index 37d835c20..013e2a8b2 100644
--- a/include/make_crypto.c
+++ b/include/make_crypto.c
@@ -72,6 +72,11 @@ main(int argc, char **argv)
     fputs("#include <openssl/aes.h>\n", f);
     fputs("#include <openssl/ui.h>\n", f);
 #else
+    fputs("#ifdef KRB5\n", f);
+    fputs("#include <krb5-types.h>\n", f);
+    fputs("#elif defined(KRB4)\n", f);
+    fputs("#include <ktypes.h>\n", f);
+    fputs("#endif\n", f);
     fputs("#include <des.h>\n", f);
     fputs("#include <md4.h>\n", f);
     fputs("#include <md5.h>\n", f);