diff --git a/Plan9.md b/Plan9.md
index ab18005d..31582806 100644
--- a/Plan9.md
+++ b/Plan9.md
@@ -20,7 +20,7 @@ The current Go distribution has been tested successfully on:
 
 # Requirements
 
-Plan 9 requires a kernel providing the following system calls:
+Go on Plan 9 requires a kernel providing the following system calls:
 
 * tsemacquire (available since [2012-06-30](https://github.com/0intro/plan9/commit/6c1d8fd563a815cbbac06f61bdc1d0f6331c3d3b))
 * nsec (available since [2014-05-15](https://github.com/0intro/plan9/commit/bd0c9332d5b1da1371d03e8e0ad03de0d08e08c6))