diff --git a/src/pkg/syscall/syscall_linux.go b/src/pkg/syscall/syscall_linux.go
index 058a76d6995..82401ac3d40 100644
--- a/src/pkg/syscall/syscall_linux.go
+++ b/src/pkg/syscall/syscall_linux.go
@@ -591,7 +591,7 @@ func PtraceDetach(pid int) (errno int) { return ptrace(PTRACE_DETACH, pid, 0, 0)
 //sys	Sethostname(p []byte) (errno int)
 //sys	Setpgid(pid int, pgid int) (errno int)
 //sys	Setrlimit(resource int, rlim *Rlimit) (errno int)
-//sys	Setsid() (pid int)
+//sys	Setsid() (pid int, errno int)
 //sys	Settimeofday(tv *Timeval) (errno int)
 //sys	Setuid(uid int) (errno int)
 //sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, errno int)
diff --git a/src/pkg/syscall/zsyscall_linux_386.go b/src/pkg/syscall/zsyscall_linux_386.go
index 519b52f0edb..951ed1f14bc 100644
--- a/src/pkg/syscall/zsyscall_linux_386.go
+++ b/src/pkg/syscall/zsyscall_linux_386.go
@@ -434,9 +434,10 @@ func Setrlimit(resource int, rlim *Rlimit) (errno int) {
 	return
 }
 
-func Setsid() (pid int) {
-	r0, _, _ := Syscall(SYS_SETSID, 0, 0, 0)
+func Setsid() (pid int, errno int) {
+	r0, _, e1 := Syscall(SYS_SETSID, 0, 0, 0)
 	pid = int(r0)
+	errno = int(e1)
 	return
 }
 
diff --git a/src/pkg/syscall/zsyscall_linux_amd64.go b/src/pkg/syscall/zsyscall_linux_amd64.go
index 8eba7994525..030bed26043 100644
--- a/src/pkg/syscall/zsyscall_linux_amd64.go
+++ b/src/pkg/syscall/zsyscall_linux_amd64.go
@@ -434,9 +434,10 @@ func Setrlimit(resource int, rlim *Rlimit) (errno int) {
 	return
 }
 
-func Setsid() (pid int) {
-	r0, _, _ := Syscall(SYS_SETSID, 0, 0, 0)
+func Setsid() (pid int, errno int) {
+	r0, _, e1 := Syscall(SYS_SETSID, 0, 0, 0)
 	pid = int(r0)
+	errno = int(e1)
 	return
 }
 
diff --git a/src/pkg/syscall/zsyscall_linux_arm.go b/src/pkg/syscall/zsyscall_linux_arm.go
index bef7148ca63..d2ffe6907d3 100644
--- a/src/pkg/syscall/zsyscall_linux_arm.go
+++ b/src/pkg/syscall/zsyscall_linux_arm.go
@@ -434,9 +434,10 @@ func Setrlimit(resource int, rlim *Rlimit) (errno int) {
 	return
 }
 
-func Setsid() (pid int) {
-	r0, _, _ := Syscall(SYS_SETSID, 0, 0, 0)
+func Setsid() (pid int, errno int) {
+	r0, _, e1 := Syscall(SYS_SETSID, 0, 0, 0)
 	pid = int(r0)
+	errno = int(e1)
 	return
 }