diff --git a/man2/futex.2 b/man2/futex.2
index 73d3f4908..90cb0c551 100644
--- a/man2/futex.2
+++ b/man2/futex.2
@@ -752,7 +752,7 @@ with Linux 2.6.0.
 
 Initial futex support was merged in Linux 2.5.7 but with different semantics
 from what was described above.
-A 4-argument system call with the semantics
+A four-argument system call with the semantics
 described in this page was introduced in Linux 2.5.40.
 In Linux 2.5.70, one argument
 was added.