diff --git a/README.md b/README.md
index 3244581..ecad080 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@
 Pullfrog is a GitHub bot that brings the full power of your favorite coding agents into GitHub. It's open source and powered by GitHub Actions. 
 
 <a href="https://github.com/apps/pullfrog/installations/new">
-  <img src="https://pullfrog.ai/add-to-github.png" alt="Add to GitHub" width="150" />
+  <img src="https://pullfrog.ai/add-to-github.png" alt="Add to GitHub" width="150px" />
 </a>
 
 Once added, you can start triggering agent runs.