diff --git a/line-reader/line-reader.d.ts b/line-reader/line-reader.d.ts
new file mode 100644
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--- /dev/null
+++ b/line-reader/line-reader.d.ts
@@ -0,0 +1,27 @@
+// Type definitions for line-reader
+// Project: https://github.com/nickewing/line-reader
+// Definitions by: Sam Saint-Pettersen <https://github.com/stpettersens>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+interface LineReaderOptions {
+	separator?: any;
+	encoding?: string;
+	bufferSize?: number;
+}
+
+interface LineReader {
+	eachLine(): Function; // For Promise.promisify;
+	open(): Function;
+	eachLine(file: string, cb: (line: string, last?: boolean, cb?: Function) => void): LineReader;
+	eachLine(file: string, options: LineReaderOptions, cb: (line: string, last?: boolean, cb?: Function) => void): LineReader;
+	open(file: string, cb: (err: Error, reader: LineReader) => void): void;
+	open(file: string, options: LineReaderOptions, cb: (err: Error, reader: LineReader) => void): void;
+	hasNextLine(): boolean;
+	nextLine(cb: (err: Error, line: string) => void): void;
+	close(cb: (err: Error) => void): void;
+}
+
+declare module "line-reader" {
+	var lr: LineReader;
+	export = lr;
+}