diff --git a/types/imul/imul-tests.ts b/types/imul/imul-tests.ts
new file mode 100644
index 0000000000..fa936e3e80
--- /dev/null
+++ b/types/imul/imul-tests.ts
@@ -0,0 +1,4 @@
+import imul = require("imul");
+
+// $ExpectType number
+imul(2, 4);
diff --git a/types/imul/index.d.ts b/types/imul/index.d.ts
new file mode 100644
index 0000000000..09cff7ce17
--- /dev/null
+++ b/types/imul/index.d.ts
@@ -0,0 +1,8 @@
+// Type definitions for imul 1.0
+// Project: https://github.com/sindresorhus/imul#readme
+// Definitions by: Daniel Cassidy <https://github.com/djcsdy>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare function imul(a: number, b: number): number;
+
+export = imul;
diff --git a/types/imul/tsconfig.json b/types/imul/tsconfig.json
new file mode 100644
index 0000000000..6a3b8af70c
--- /dev/null
+++ b/types/imul/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "imul-tests.ts"
+    ]
+}
diff --git a/types/imul/tslint.json b/types/imul/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/imul/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }