diff --git a/docs/mine/solo-guides/solo_mining_nvidia.md b/docs/mine/solo-guides/solo_mining_nvidia.md
index 058b598..0b12745 100644
--- a/docs/mine/solo-guides/solo_mining_nvidia.md
+++ b/docs/mine/solo-guides/solo_mining_nvidia.md
@@ -1,6 +1,6 @@
 <div>
 
-<div align=center>
+<div align="center">
 <img src="static/img/mine/solo-mining-guides/linux/zano_icon.png" width="400">
 <h1>Solo Mining with Nvidia<h1>
 </div>