diff --git a/CNT/CNT_TAB.SRC b/CNT/CNT_TAB.SRC
index f523209a..3a45a958 100644
--- a/CNT/CNT_TAB.SRC
+++ b/CNT/CNT_TAB.SRC
@@ -89,11 +89,10 @@ CREATE_TABLE(cnt_disc_params, 0)
         NUMBER(1)
         DEFAULT 0
         NOT NULL,
-    cnt_disc_params_ksverplicht
+    cnt_disc_params_ksverplicht  /* Kostensoort verplicht {0=niet verplicht (default), 1=verplicht} */
         NUMBER(1)
         DEFAULT 0
         NOT NULL
-        CONSTRAINT cnt_c_cnt_disc_params_ks CHECK(cnt_disc_params_ksverplicht IN (0,1)),  /* Kostensoort verplicht {0=niet verplicht (default), 1=verplicht} */
 );
 
 
@@ -456,9 +455,9 @@ CREATE_TABLE(cnt_factuurschema , 0)
 );
 
 CREATE TABLE(cnt_verlengschema, 0)
-( 
+(
    cnt_contract_key
-      NUMBER(10) 
+      NUMBER(10)
       CONSTRAINT cnt_r_cnt_contract_key2 REFERENCES cnt_contract(cnt_contract_key),
    cnt_verlengschema_einddatum
       DATE,