diff --git a/content/browser/web_contents/web_contents_view_mac.mm b/content/browser/web_contents/web_contents_view_mac.mm
index 712da37eaef7c..ef1d4f71a8184 100644
--- a/content/browser/web_contents/web_contents_view_mac.mm
+++ b/content/browser/web_contents/web_contents_view_mac.mm
@@ -647,10 +647,10 @@ bool WebContentsViewMac::DragPromisedFileTo(
         base::BindOnce(&PromiseWriterHelper, drop_data, std::move(file)));
   }
 
-  // The DragDownloadFile constructor may have altered the value of
-  // |*out_file_path| if, say, an existing file at the drop site has the same
-  // name. Return the actual name that was used to write the file.
-  *out_file_path = file_path;
+  // |*out_file_path| was updated by CreateFileForDrop() above if an existing
+  // file at the drop site had the same name. Return that collision-adjusted
+  // path so the drop target opens the freshly written file, not a pre-existing
+  // one.
   return true;
 }