diff --git a/servers/slapd/overlays/dds.c b/servers/slapd/overlays/dds.c
index 82ae17a105..ebf70ec878 100644
--- a/servers/slapd/overlays/dds.c
+++ b/servers/slapd/overlays/dds.c
@@ -1088,6 +1088,7 @@ dds_op_extended( Operation *op, SlapReply *rs )
 		ttlmod.sml_flags = SLAP_MOD_MANAGING;
 		ttlmod.sml_desc = slap_schema.si_ad_entryTtl;
 		ttlmod.sml_values = ttlvalues;
+		ttlmod.sml_numvals = 1;
 		ttlvalues[ 0 ].bv_val = ttlbuf;
 		ttlvalues[ 0 ].bv_len = snprintf( ttlbuf, sizeof( ttlbuf ), "%ld", ttl );
 		BER_BVZERO( &ttlvalues[ 1 ] );