diff --git a/man2/s390_guarded_storage.2 b/man2/s390_guarded_storage.2
index af7ad5baf..93988eead 100644
--- a/man2/s390_guarded_storage.2
+++ b/man2/s390_guarded_storage.2
@@ -145,7 +145,7 @@ This Linux-specific system call is available only on the s390 architecture.
 The guarded storage facility is available beginning with System z14.
 .SH NOTES
 Glibc does not provide a wrapper for this system call; call it using
-.BR syscall (2)
+.BR syscall (2).
 .PP
 The description of the guarded storage facility along with related
 instructions and Guarded Storage Control Block and