diff --git a/ssh/terminal/util_linux.go b/ssh/terminal/util_linux.go
index 283144b..5883b22 100644
--- a/ssh/terminal/util_linux.go
+++ b/ssh/terminal/util_linux.go
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build linux
-
 package terminal
 
-import "syscall"
-
-const ioctlReadTermios = syscall.TCGETS
-const ioctlWriteTermios = syscall.TCSETS
+// These constants are declared here, rather than importing
+// them from the syscall package as some syscall packages, even
+// on linux, for example gccgo, do not declare them.
+const ioctlReadTermios = 0x5401  // syscall.TCGETS
+const ioctlWriteTermios = 0x5402 // syscall.TCSETS