diff --git a/types/mocks.d.ts b/types/mocks.d.ts
index 960882f077..4d3e378937 100644
--- a/types/mocks.d.ts
+++ b/types/mocks.d.ts
@@ -10,6 +10,14 @@ declare module "@hapi/subtext"
 
 // Support import for custom module extensions
 // https://www.typescriptlang.org/docs/handbook/modules.html#wildcard-module-declarations
+declare module "*.module.scss" {
+  const classes: { [key: string]: string };
+  export default classes;
+}
+declare module "*.module.css" {
+  const classes: { [key: string]: string };
+  export default classes;
+}
 declare module "*.scss" {
   const content: string;
   export = content;