diff --git a/cancelreader_bsd.go b/cancelreader_bsd.go
index c6154f0..e122fa2 100644
--- a/cancelreader_bsd.go
+++ b/cancelreader_bsd.go
@@ -1,5 +1,5 @@
-//go:build darwin || freebsd || netbsd || openbsd
-// +build darwin freebsd netbsd openbsd
+//go:build darwin || freebsd || netbsd || openbsd || dragonfly
+// +build darwin freebsd netbsd openbsd dragonfly
 
 // nolint:revive
 package tea
diff --git a/cancelreader_default.go b/cancelreader_default.go
index 3d06887..eba557e 100644
--- a/cancelreader_default.go
+++ b/cancelreader_default.go
@@ -1,5 +1,5 @@
-//go:build !darwin && !windows && !linux && !solaris && !freebsd && !netbsd && !openbsd
-// +build !darwin,!windows,!linux,!solaris,!freebsd,!netbsd,!openbsd
+//go:build !darwin && !windows && !linux && !solaris && !freebsd && !netbsd && !openbsd && !dragonfly
+// +build !darwin,!windows,!linux,!solaris,!freebsd,!netbsd,!openbsd,!dragonfly
 
 package tea
 
diff --git a/cancelreader_select.go b/cancelreader_select.go
index 505b5bd..1749945 100644
--- a/cancelreader_select.go
+++ b/cancelreader_select.go
@@ -1,5 +1,5 @@
-//go:build solaris || darwin || freebsd || netbsd || openbsd
-// +build solaris darwin freebsd netbsd openbsd
+//go:build solaris || darwin || freebsd || netbsd || openbsd || dragonfly
+// +build solaris darwin freebsd netbsd openbsd dragonfly
 
 // nolint:revive
 package tea