diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62d1a9f..b66bd7f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ Breaking changes:
 
 New features:
 
+  - Added `stdinIsTTY` as the counterpart of `process.stdin.isTTY` (#31 by @matoruru)
+
 Bugfixes:
 
 Other improvements:
diff --git a/src/Node/Process.purs b/src/Node/Process.purs
index 39099d9..8589959 100644
--- a/src/Node/Process.purs
+++ b/src/Node/Process.purs
@@ -20,6 +20,7 @@ module Node.Process
   , stdin
   , stdout
   , stderr
+  , stdinIsTTY
   , stdoutIsTTY
   , stderrIsTTY
   , version
@@ -151,6 +152,11 @@ stdout = process.stdout
 stderr :: Writable ()
 stderr = process.stderr
 
+-- | Check whether the standard input stream appears to be attached to a TTY.
+-- | It is a good idea to check this before processing the input data from stdin.
+stdinIsTTY :: Boolean
+stdinIsTTY = process.stdin.isTTY
+
 -- | Check whether the standard output stream appears to be attached to a TTY.
 -- | It is a good idea to check this before printing ANSI codes to stdout
 -- | (e.g. for coloured text in the terminal).