diff --git a/package.json b/package.json
index f344bd7..384f5d4 100644
--- a/package.json
+++ b/package.json
@@ -135,7 +135,8 @@
     "Alex Howes <alex@alexhowes.co.uk>",
     "Sudham Jayanthi <workwithsudham@gmail.com>",
     "Ben Khoo <khoobks@gmail.com>",
-    "Andy Edinborough <andy@edinborough.org>"
+    "Andy Edinborough <andy@edinborough.org>",
+    "Claudio Cocciarelli <claudiococciarelli@gmail.com>"
   ],
   "license": "MIT",
   "engines": {
diff --git a/type-definitions/quagga.d.ts b/type-definitions/quagga.d.ts
index 5e62da0..a74b3db 100644
--- a/type-definitions/quagga.d.ts
+++ b/type-definitions/quagga.d.ts
@@ -870,7 +870,7 @@ export interface QuaggaJSConfigObject {
         /**
          * @default [ "code_128_reader" ]
          */
-        readers?: (QuaggaJSReaderConfig | string)[];
+        readers?: (QuaggaJSReaderConfig | QuaggaJSCodeReader)[];
 
         debug?: {
             /**
@@ -1005,3 +1005,19 @@ export type TypedArray =
     | Uint32Array
     | Float32Array
     | Float64Array;
+
+export type QuaggaJSCodeReader =
+    | 'code_128_reader'
+    | 'ean_reader'
+    | 'ean_5_reader'
+    | 'ean_2_reader'
+    | 'ean_8_reader'
+    | 'code_39_reader'
+    | 'code_39_vin_reader'
+    | 'codabar_reader'
+    | 'upc_reader'
+    | 'upc_e_reader'
+    | 'i2of5_reader'
+    | '2of5_reader'
+    | 'code_93_reader'
+    | 'code_32_reader';