diff --git a/packages/block-editor/src/components/iframe/index.js b/packages/block-editor/src/components/iframe/index.js
index 536fc6f254b563..0bb7e30a942046 100644
--- a/packages/block-editor/src/components/iframe/index.js
+++ b/packages/block-editor/src/components/iframe/index.js
@@ -389,7 +389,10 @@ function Iframe( {
 		// possible scrollTop positions. Round the value to avoid subpixel
 		// truncation by the browser which sometimes causes a 1px error.
 		scrollTopNext = Math.round(
-			Math.min( Math.max( 0, scrollTopNext ), maxScrollTop )
+			Math.min(
+				Math.max( 0, scrollTopNext ),
+				Math.max( 0, maxScrollTop )
+			)
 		);
 
 		iframeDocument.documentElement.style.setProperty(