diff --git a/man/man3/9p.3 b/man/man3/9p.3
index 12a7ef0..6dc4c9c 100644
--- a/man/man3/9p.3
+++ b/man/man3/9p.3
@@ -620,7 +620,7 @@
 .I flush
 implementation:
 .I flush
-is only necessary in programs which 
+is only necessary in programs that 
 arrange for 
 .I respond
 to be called asynchronously.