diff --git a/src/components/splitbutton/SplitButton.js b/src/components/splitbutton/SplitButton.js
index 4b68e2531e..fabc547df3 100644
--- a/src/components/splitbutton/SplitButton.js
+++ b/src/components/splitbutton/SplitButton.js
@@ -111,13 +111,8 @@ export class SplitButton extends Component {
 
     alignPanel() {
         const container = this.defaultButton.parentElement;
-        if (this.props.appendTo) {
-            this.overlayRef.current.style.minWidth = DomHandler.getWidth(container) + 'px';
-            DomHandler.absolutePosition(this.overlayRef.current, container);
-        }
-        else {
-            DomHandler.relativePosition(this.overlayRef.current, container);
-        }
+        this.overlayRef.current.style.minWidth = DomHandler.getOuterWidth(container) + 'px';
+        DomHandler.absolutePosition(this.overlayRef.current, container);
     }
 
     bindDocumentClickListener() {
diff --git a/src/components/splitbutton/SplitButtonPanel.js b/src/components/splitbutton/SplitButtonPanel.js
index 1f7543c003..d226e9d66a 100644
--- a/src/components/splitbutton/SplitButtonPanel.js
+++ b/src/components/splitbutton/SplitButtonPanel.js
@@ -40,12 +40,7 @@ class SplitButtonPanelComponent extends Component {
     render() {
         let element = this.renderElement();
 
-        if (this.props.appendTo) {
-            return ReactDOM.createPortal(element, this.props.appendTo);
-        }
-        else {
-            return element;
-        }
+        return ReactDOM.createPortal(element, this.props.appendTo || document.body);
     }
 }