diff --git a/FAC/FAC_TAB.SRC b/FAC/FAC_TAB.SRC
index 7e2e8116..be9bb97b 100644
--- a/FAC/FAC_TAB.SRC
+++ b/FAC/FAC_TAB.SRC
@@ -2211,8 +2211,8 @@ CREATE_TABLE(fac_layout, 0)
    fac_layout_key               NUMBER(10)
                                 CONSTRAINT fac_k_fac_layout_key PRIMARY KEY,
    fac_layout_version           NUMBER(2)
-                                DEFAULT 1,
-   fac_layout_screen            VARCHAR2(128),
+                                DEFAULT 1 NOT NULL,
+   fac_layout_screen            VARCHAR2(128) NOT NULL,
    fac_layout_options           VARCHAR2(4000), -- JSON
    fac_layout_aanmaak           DATE
                                 DEFAULT SYSDATE