diff --git a/lib/hdb/hdb_locl.h b/lib/hdb/hdb_locl.h
index d94d392f7..5565f6294 100644
--- a/lib/hdb/hdb_locl.h
+++ b/lib/hdb/hdb_locl.h
@@ -67,8 +67,10 @@
 #include <db.h>
 #endif
 
-#ifdef HAVE_NDBM_H
+#if defined(HAVE_NDBM_H)
 #include <ndbm.h>
+#elif defined(HAVE_GDBM_NDBM_H)
+#include <gdbm/ndbm.h>
 #endif
 
 int hdb_principal2key(krb5_context, krb5_principal, krb5_data*);