diff --git a/servers/slapd/back-bdb2/dn2id.c b/servers/slapd/back-bdb2/dn2id.c
index b4c17be8fb..43707b77d9 100644
--- a/servers/slapd/back-bdb2/dn2id.c
+++ b/servers/slapd/back-bdb2/dn2id.c
@@ -58,6 +58,7 @@ bdb2i_dn2id_add(
 			sprintf( key.dptr, "%c%s", DN_ONE_PREFIX, pdn );
 			rc = bdb2i_idl_insert_key( be, db, key, id );
 			free( key.dptr );
+			free( pdn );
 		}
 	}