diff --git a/man2/pipe.2 b/man2/pipe.2
index 93fbd36f2..41a482f37 100644
--- a/man2/pipe.2
+++ b/man2/pipe.2
@@ -56,7 +56,7 @@ pipe, pipe2 \- create pipe
 .B struct fd_pair {
 .B "    long fd[2];"
 .B "};"
-.B struct fd_pair pipe();
+.B struct fd_pair pipe(void);
 .fi
 .SH DESCRIPTION
 .BR pipe ()