diff --git a/man7/futex.7 b/man7/futex.7
index 31d91a133..2c5b56c8a 100644
--- a/man7/futex.7
+++ b/man7/futex.7
@@ -51,7 +51,7 @@ in which case the application is commonly called multithreaded.
 .SS Semantics
 .PP
 Any futex operation starts in user space,
-but it may necessary to communicate with the kernel using the
+but it may be necessary to communicate with the kernel using the
 .BR futex (2)
 system call.
 .PP