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.
          */
diff --git a/packages/primevue/src/checkbox/Checkbox.vue b/packages/primevue/src/checkbox/Checkbox.vue
index 199d149e8..94b68d76e 100755
--- a/packages/primevue/src/checkbox/Checkbox.vue
+++ b/packages/primevue/src/checkbox/Checkbox.vue
@@ -22,7 +22,7 @@
             v-bind="getPTOptions('input')"
         />
         <div :class="cx('box')" v-bind="getPTOptions('box')">
-            <slot name="icon" :checked="checked" :class="cx('icon')">
+            <slot name="icon" :checked="checked" :indeterminate="d_indeterminate" :class="cx('icon')">
                 <CheckIcon v-if="checked" :class="cx('icon')" v-bind="getPTOptions('icon')" />
                 <MinusIcon v-else-if="d_indeterminate" :class="cx('icon')" v-bind="getPTOptions('icon')" />
             </slot>