diff --git a/src/Markup/Button.php b/src/Markup/Button.php
index 60c8b8e..9e3a621 100644
--- a/src/Markup/Button.php
+++ b/src/Markup/Button.php
@@ -9,20 +9,29 @@ class Button implements MarkupInterface
 
     public function textButton(string $text, OnClick $click): Button
     {
+        unset($this->fragment['imageButton']);
+
         $this->fragment['textButton']['text'] = $text;
-        $this->fragment['onClick'] = $click->getMarkup();
+        $this->fragment['textButton']['onClick'] = $click->getMarkup();
 
         return $this;
     }
 
-    public function imageButton(OnClick $click, string $name, string $icon = '', string $iconUrl = ''): Button
+    public function imageButton(OnClick $click, string $name, string $icon = null, string $iconUrl = null): Button
     {
-        $this->fragment['imageButton'] = [
-            'onClick' => $click->getMarkup(),
-            'name' => $name,
-            'icon' => $icon,
-            'iconUrl' => $iconUrl,
-        ];
+        unset($this->fragment['textButton']);
+
+        if ($icon) {
+            $this->fragment['imageButton']['icon'] = $icon;
+            unset($this->fragment['imageButton']['iconUrl']);
+        }
+        elseif ($iconUrl) {
+            $this->fragment['imageButton']['iconUrl'] = $iconUrl;
+            unset($this->fragment['imageButton']['icon']);
+        }
+
+        $this->fragment['imageButton']['onClick'] = $click->getMarkup();
+        $this->fragment['imageButton']['name'] = $name;
 
         return $this;
     }
diff --git a/src/Markup/Image.php b/src/Markup/Image.php
index 04a4811..9d37f54 100644
--- a/src/Markup/Image.php
+++ b/src/Markup/Image.php
@@ -13,6 +13,8 @@ public static function create(): Image
 
     public function imageUrl(string $url): Image
     {
+        $this->fragment['imageUrl'] = $url;
+
         return $this;
     }
 
diff --git a/src/Markup/OnClick.php b/src/Markup/OnClick.php
index c038f89..ac9dad9 100644
--- a/src/Markup/OnClick.php
+++ b/src/Markup/OnClick.php
@@ -13,6 +13,8 @@ public static function create(): OnClick
 
     public function action(FormAction $formAction): OnClick
     {
+        unset($this->fragment['openLink']);
+
         $this->fragment['action'] = $formAction->getMarkup();
 
         return $this;
@@ -20,7 +22,9 @@ public function action(FormAction $formAction): OnClick
 
     public function openLink(string $url): OnClick
     {
-        $this->fragment['openLink'] = $url;
+        unset($this->fragment['action']);
+
+        $this->fragment['openLink']['url'] = $url;
 
         return $this;
     }
diff --git a/src/Widget.php b/src/Widget.php
index 35eab08..7cafe31 100644
--- a/src/Widget.php
+++ b/src/Widget.php
@@ -17,6 +17,9 @@ public static function create(): Widget
 
     public function textParagraph(string $text): Widget
     {
+        unset($this->fragment['image']);
+        unset($this->fragment['keyValue']);
+
         $this->fragment['textParagraph'] = [
             'text' => $text,
         ];
@@ -26,6 +29,9 @@ public function textParagraph(string $text): Widget
 
     public function image(Image $image)
     {
+        unset($this->fragment['textParagraph']);
+        unset($this->fragment['keyValue']);
+
         $this->fragment['image'] = $image->getMarkup();
 
         return $this;
@@ -40,6 +46,9 @@ public function addButton(Button $button): Widget
 
     public function keyValue(KeyValue $keyValue): Widget
     {
+        unset($this->fragment['textParagraph']);
+        unset($this->fragment['image']);
+
         $this->fragment['keyValue'] = $keyValue->getMarkup();
 
         return $this;