diff --git a/repo_files/documentations/line_chart.md b/repo_files/documentations/line_chart.md
index 1c17a7536c..770e42cee1 100644
--- a/repo_files/documentations/line_chart.md
+++ b/repo_files/documentations/line_chart.md
@@ -1,6 +1,6 @@
 # LineChart
 
-<a href="https://youtu.be/F3wTxTdAFaU"><img src="https://github.com/imaNNeo/fl_chart/raw/main/repo_files/images/line_chart/line_chart_video_thumbnail.png"></a>
+<a href="https://youtu.be/F3wTxTdAFaU"><img src="https://github.com/imaNNeo/fl_chart/raw/main/repo_files/images/line_chart/line_chart_video_thumbnail.png" width=540></a>
 
 ### How to use
 ```dart