diff --git a/packages/primevue/src/checkbox/Checkbox.d.ts b/packages/primevue/src/checkbox/Checkbox.d.ts
index 676358503..325d0692b 100755
--- a/packages/primevue/src/checkbox/Checkbox.d.ts
+++ b/packages/primevue/src/checkbox/Checkbox.d.ts
@@ -225,6 +225,10 @@ export interface CheckboxSlots {
          * State of the checkbox.
          */
         checked: boolean;
+        /**
+         * Indeterminate state of the checkbox.
+         */
+        indeterminate?: boolean | undefined;
         /**
          * Style class of the icon.
          */