diff --git a/README.md b/README.md
index b4df0ec3..6607b494 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,7 @@ If you'd like to contribute translations, please check out our [CrowdIn project]
 
 ## Professional Installation Service
 
-We offer a professional installation service. To find out more, email us at [support@alt-three.com](mailto:support@alt-three.com?Cachet Installation)
+We offer a professional installation service. To find out more, email us at [support@alt-three.com](mailto:support@alt-three.com?Cachet%20Installation)
 
 ## Security Vulnerabilities