diff --git a/pkg/term/windows/windows.go b/pkg/term/windows/windows.go
index 1f8965969c..7e8f265d47 100644
--- a/pkg/term/windows/windows.go
+++ b/pkg/term/windows/windows.go
@@ -1,3 +1,4 @@
+// +build windows
 // These files implement ANSI-aware input and output streams for use by the Docker Windows client.
 // When asked for the set of standard streams (e.g., stdin, stdout, stderr), the code will create
 // and return pseudo-streams that convert ANSI sequences to / from Windows Console API calls.