diff --git a/internal/terminal/terminal_check_bsd.go b/internal/terminal/terminal_check_bsd.go
new file mode 100644
index 0000000..6a47df6
--- /dev/null
+++ b/internal/terminal/terminal_check_bsd.go
@@ -0,0 +1,13 @@
+// +build darwin dragonfly freebsd netbsd openbsd
+
+package terminal
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TIOCGETA
+
+func IsTerminal(fd int) bool {
+	_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
+	return err == nil
+}
+
diff --git a/internal/terminal/terminal_check_unix.go b/internal/terminal/terminal_check_unix.go
new file mode 100644
index 0000000..f30ea87
--- /dev/null
+++ b/internal/terminal/terminal_check_unix.go
@@ -0,0 +1,13 @@
+// +build linux aix
+
+package terminal
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TCGETS
+
+func IsTerminal(fd int) bool {
+	_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
+	return err == nil
+}
+
diff --git a/terminal_check_aix.go b/terminal_check_aix.go
deleted file mode 100644
index 948c385..0000000
--- a/terminal_check_aix.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// +build aix
-
-package logrus
-
-import (
-	"golang.org/x/sys/unix"
-)
-
-const ioctlReadTermios = unix.TCGETS
diff --git a/terminal_check_bsd.go b/terminal_check_bsd.go
deleted file mode 100644
index 8f9c330..0000000
--- a/terminal_check_bsd.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// +build darwin dragonfly freebsd netbsd openbsd
-
-package logrus
-
-import "golang.org/x/sys/unix"
-
-const ioctlReadTermios = unix.TIOCGETA
diff --git a/terminal_check_linux.go b/terminal_check_linux.go
deleted file mode 100644
index 1690197..0000000
--- a/terminal_check_linux.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// +build linux
-
-package logrus
-
-import "golang.org/x/sys/unix"
-
-const ioctlReadTermios = unix.TCGETS
diff --git a/terminal_check_notappengine.go b/terminal_check_notappengine.go
index 156a93b..6f28f89 100644
--- a/terminal_check_notappengine.go
+++ b/terminal_check_notappengine.go
@@ -6,15 +6,13 @@ import (
 	"io"
 	"os"
 
-	"golang.org/x/sys/unix"
+	"github.com/sirupsen/logrus/internal/terminal"
 )
 
 func checkIfTerminal(w io.Writer) bool {
 	switch v := w.(type) {
 	case *os.File:
-		_, err := unix.IoctlGetTermios(int(v.Fd()), ioctlReadTermios)
-
-		return err == nil
+		return terminal.IsTerminal(int(v.Fd()))
 	default:
 		return false
 	}