diff --git a/servers/slapd/backend.c b/servers/slapd/backend.c
index 92bcb9f391..b8fd744a25 100644
--- a/servers/slapd/backend.c
+++ b/servers/slapd/backend.c
@@ -1054,7 +1054,7 @@ backend_check_restrictions(
 		requires |= op->o_bd->be_requires;
 		bssf = &op->o_bd->be_ssf_set.sss_ssf;
 		fssf = &ssfs.sss_ssf;
-		for ( i=0; i<sizeof(ssfs)/sizeof(slap_ssf_t); i++ ) {
+		for ( i=0; i < (int)(sizeof(ssfs)/sizeof(slap_ssf_t)); i++ ) {
 			if ( bssf[i] ) fssf[i] = bssf[i];
 		}
 	}
diff --git a/servers/slapd/overlays/syncprov.c b/servers/slapd/overlays/syncprov.c
index 3d46558375..d3d16686f3 100644
--- a/servers/slapd/overlays/syncprov.c
+++ b/servers/slapd/overlays/syncprov.c
@@ -1821,7 +1821,8 @@ syncprov_op_response( Operation *op, SlapReply *rs )
 			 * that changed, and only one can be passed in the csn queue.
 			 */
 			Modifications *mod = op->orm_modlist;
-			int i, j, sid;
+			unsigned i;
+			int j, sid;
 
 			for ( i=0; i<mod->sml_numvals; i++ ) {
 				sid = slap_parse_csn_sid( &mod->sml_values[i] );