diff --git a/types/node-gettext/tsconfig.json b/types/node-gettext/tsconfig.json
index 9306d23426..741b103f80 100644
--- a/types/node-gettext/tsconfig.json
+++ b/types/node-gettext/tsconfig.json
@@ -15,7 +15,8 @@
         "noEmit": true,
         "forceConsistentCasingInFileNames": true,
         "esModuleInterop": true,
-        "allowSyntheticDefaultImports": true
+        "allowSyntheticDefaultImports": true,
+        "strictFunctionTypes": true
     },
     "files": [
         "index.d.ts",