diff --git a/packages/primevue/src/button/BaseButton.vue b/packages/primevue/src/button/BaseButton.vue
index 407da43d0..3a5535b35 100644
--- a/packages/primevue/src/button/BaseButton.vue
+++ b/packages/primevue/src/button/BaseButton.vue
@@ -19,7 +19,7 @@ export default {
             default: 'left'
         },
         iconClass: {
-            type: String,
+            type: [String, Object],
             default: null
         },
         badge: {
@@ -27,7 +27,7 @@ export default {
             default: null
         },
         badgeClass: {
-            type: String,
+            type: [String, Object],
             default: null
         },
         badgeSeverity: {
diff --git a/packages/primevue/src/button/Button.d.ts b/packages/primevue/src/button/Button.d.ts
index c5b1f30da..c481550ec 100755
--- a/packages/primevue/src/button/Button.d.ts
+++ b/packages/primevue/src/button/Button.d.ts
@@ -107,7 +107,7 @@ export interface ButtonProps extends ButtonHTMLAttributes {
     /**
      * Style class of the icon.
      */
-    iconClass?: string | undefined;
+    iconClass?: string | object | undefined;
     /**
      * Value of the badge.
      */
@@ -115,7 +115,7 @@ export interface ButtonProps extends ButtonHTMLAttributes {
     /**
      * Style class of the badge.
      */
-    badgeClass?: string | undefined;
+    badgeClass?: string | object | undefined;
     /**
      * Severity type of the badge.
      */