diff --git a/man2/s390_runtime_instr.2 b/man2/s390_runtime_instr.2
index 18c2c0763..9ef293f3e 100644
--- a/man2/s390_runtime_instr.2
+++ b/man2/s390_runtime_instr.2
@@ -85,6 +85,10 @@ The run-time instrumentation facility is available beginning with System z EC12.
 Glibc does not provide a wrapper for this system call, use
 .BR syscall (2)
 to call it.
+.PP
+The header
+.B asm/runtime_instr.h
+is available since Linux 4.16.
 .SH SEE ALSO
 .BR syscall (2),
 .BR signal (7)