diff --git a/types/materialize-css/autoinit.d.ts b/types/materialize-css/autoinit.d.ts
new file mode 100644
index 0000000000..c3e9009b1d
--- /dev/null
+++ b/types/materialize-css/autoinit.d.ts
@@ -0,0 +1,6 @@
+declare namespace M {
+    /**
+     * Automatically initialize components.
+     */
+    function AutoInit(context?: Element): void;
+}
diff --git a/types/materialize-css/index.d.ts b/types/materialize-css/index.d.ts
index f8502cafb4..3be768a216 100644
--- a/types/materialize-css/index.d.ts
+++ b/types/materialize-css/index.d.ts
@@ -9,6 +9,7 @@
 
 /// <reference types="jquery" />
 /// <reference path="./autocomplete.d.ts" />
+/// <reference path="./autoinit.d.ts" />
 /// <reference path="./carousel.d.ts" />
 /// <reference path="./character-counter.d.ts" />
 /// <reference path="./chips.d.ts" />