diff --git a/configure.ac b/configure.ac
index 9b744dfa5..8bc00ac92 100644
--- a/configure.ac
+++ b/configure.ac
@@ -509,9 +509,9 @@ AM_CONDITIONAL([HAVE_PO4A], [test "x$PO4A" != "xno"])
 
 dnl Check for db_dump, db_load (optional).
 AC_CHECK_PROGS([DB_DUMP],
-               [db_dump db4_dump db4.8_dump db4.7_dump db4.6_dump],[no])
+               [db_dump db5.1_dump db4_dump db4.8_dump db4.7_dump db4.6_dump],[no])
 AC_CHECK_PROGS([DB_LOAD],
-               [db_load db4_load db4.8_load db4.7_load db4.6_load],[no])
+               [db_load db5.1_load db4_load db4.8_load db4.7_load db4.6_load],[no])
 if test "x$DB_DUMP" != "xno"; then
     AC_DEFINE_UNQUOTED([DB_DUMP],["$DB_DUMP"],[Name of db_dump program.])
 fi