diff --git a/ssh/test/dial_unix_test.go b/ssh/test/dial_unix_test.go
index 091e48c..a0eba38 100644
--- a/ssh/test/dial_unix_test.go
+++ b/ssh/test/dial_unix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !windows
+// +build !windows,!solaris,!aix
 
 package test
 
diff --git a/ssh/test/session_test.go b/ssh/test/session_test.go
index 4eb7afd..7de7d14 100644
--- a/ssh/test/session_test.go
+++ b/ssh/test/session_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !windows
+// +build !windows,!solaris,!aix
 
 package test