diff --git a/APPL/INS/ins.inc b/APPL/INS/ins.inc
index d1287c93be..22d9c44342 100644
--- a/APPL/INS/ins.inc
+++ b/APPL/INS/ins.inc
@@ -2703,7 +2703,7 @@ ins = {checkAutLevel:
                       ? "         AND el.ins_alg_locatie_key = " + loc_key
                       : ""))
                   + (bld_key_arr && bld_key_arr.length // elders in dit bestand wordt scherper gefilterd, deze is voor de performance
-                    ? "         AND el.ins_alg_locatie_key = (SELECT alg_locatie_key FROM alg_gebouw WHERE alg_gebouw_key IN (" + bld_key_arr.join(",") + "))"
+                    ? "         AND el.ins_alg_locatie_key IN (SELECT alg_locatie_key FROM alg_gebouw WHERE alg_gebouw_key IN (" + bld_key_arr.join(",") + "))"
                     : (bld_key > 0
                       ? "         AND el.ins_alg_locatie_key = (SELECT alg_locatie_key FROM alg_gebouw WHERE alg_gebouw_key = " + bld_key + ")"
                       : ""))