diff --git a/projects/aca-folder-rules/src/lib/rule-details/conditions/rule-composite-condition.ui-component.html b/projects/aca-folder-rules/src/lib/rule-details/conditions/rule-composite-condition.ui-component.html
index 2f022ec24..4cea158eb 100644
--- a/projects/aca-folder-rules/src/lib/rule-details/conditions/rule-composite-condition.ui-component.html
+++ b/projects/aca-folder-rules/src/lib/rule-details/conditions/rule-composite-condition.ui-component.html
@@ -20,7 +20,7 @@
     <mat-form-field *ngIf="i > 0">
       <mat-select
         [value]="booleanModeControl.value"
-        [disabled]="i > 1 || readOnly"
+        [disabled]="!isOrImplemented || i > 1 || readOnly"
         (selectionChange)="setBooleanMode($event.value)">
         <mat-option value="and">{{ 'ACA_FOLDER_RULES.RULE_DETAILS.LOGIC_OPERATORS.AND' | translate }}</mat-option>
         <mat-option value="or">{{ 'ACA_FOLDER_RULES.RULE_DETAILS.LOGIC_OPERATORS.OR' | translate }}</mat-option>
diff --git a/projects/aca-folder-rules/src/lib/rule-details/conditions/rule-composite-condition.ui-component.ts b/projects/aca-folder-rules/src/lib/rule-details/conditions/rule-composite-condition.ui-component.ts
index 6f61fb63c..3d2720b56 100644
--- a/projects/aca-folder-rules/src/lib/rule-details/conditions/rule-composite-condition.ui-component.ts
+++ b/projects/aca-folder-rules/src/lib/rule-details/conditions/rule-composite-condition.ui-component.ts
@@ -57,6 +57,8 @@ export class RuleCompositeConditionUiComponent implements ControlValueAccessor,
     simpleConditions: new FormArray([])
   });
 
+  readonly isOrImplemented = false;
+
   private _readOnly = false;
   @Input()
   get readOnly(): boolean {