diff --git a/types/gifffer/gifffer-tests.ts b/types/gifffer/gifffer-tests.ts
index 03d54f0d89..cd718cd56a 100644
--- a/types/gifffer/gifffer-tests.ts
+++ b/types/gifffer/gifffer-tests.ts
@@ -1,4 +1,4 @@
-import * as Gifffer from 'gifffer';
+import Gifffer = require('gifffer');
 
 let gifs: HTMLButtonElement[];
 
diff --git a/types/gifffer/tsconfig.json b/types/gifffer/tsconfig.json
index 273e998048..20a6f19517 100644
--- a/types/gifffer/tsconfig.json
+++ b/types/gifffer/tsconfig.json
@@ -15,7 +15,8 @@
         ],
         "types": [],
         "noEmit": true,
-        "forceConsistentCasingInFileNames": true
+        "forceConsistentCasingInFileNames": true,
+        "esModuleInterop": true
     },
     "files": [
         "index.d.ts",