diff --git a/src/os/file_plan9.go b/src/os/file_plan9.go
index 5e0ad68208..a1a51a1c06 100644
--- a/src/os/file_plan9.go
+++ b/src/os/file_plan9.go
@@ -35,7 +35,7 @@ type file struct {
 // a finalizer might be run. On Unix systems this will cause the SetDeadline
 // methods to stop working.
 //
-// As an alternative, see the f.SyscallCon method.
+// As an alternative, see the f.SyscallConn method.
 func (f *File) Fd() uintptr {
 	if f == nil {
 		return ^(uintptr(0))
diff --git a/src/os/file_unix.go b/src/os/file_unix.go
index c4dd4fc6a9..e0f16d809d 100644
--- a/src/os/file_unix.go
+++ b/src/os/file_unix.go
@@ -68,7 +68,7 @@ type file struct {
 // a finalizer might be run. On Unix systems this will cause the SetDeadline
 // methods to stop working.
 //
-// As an alternative, see the f.SyscallCon method.
+// As an alternative, see the f.SyscallConn method.
 func (f *File) Fd() uintptr {
 	if f == nil {
 		return ^(uintptr(0))