diff --git a/README.md b/README.md
index 08540a0628d..51286a4cf36 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@
 
 [![Apache CloudStack](tools/logo/apache_cloudstack.png)](https://cloudstack.apache.org/)
 
-Apache CloudStack is open source software designed to deploy and manage large
+Apache CloudStack is open-source software designed to deploy and manage large
 networks of virtual machines, as a highly available, highly scalable
 Infrastructure as a Service (IaaS) cloud computing platform. CloudStack is used
 by a number of service providers to offer public cloud services, and by many