diff --git a/src/misc/schema.ts b/src/misc/schema.ts
index f6fb128751..90d4c3b715 100644
--- a/src/misc/schema.ts
+++ b/src/misc/schema.ts
@@ -50,7 +50,7 @@ export const refs = {
 export interface Schema extends SimpleSchema {
 	properties?: Obj;
 	ref?: keyof typeof refs;
-};
+}
 
 type NonUndefinedPropertyNames<T extends Obj> = {
 	[K in keyof T]: T[K]['optional'] extends true ? never : K
@@ -63,7 +63,7 @@ type UndefinedPropertyNames<T extends Obj> = {
 type OnlyRequired<T extends Obj> = Pick<T, NonUndefinedPropertyNames<T>>;
 type OnlyOptional<T extends Obj> = Pick<T, UndefinedPropertyNames<T>>;
 
-export interface Obj extends SimpleObj { [key: string]: Schema };
+export interface Obj extends SimpleObj { [key: string]: Schema; }
 
 export type ObjType<s extends Obj> =
 	{ [P in keyof OnlyOptional<s>]?: SchemaType<s[P]> } &
diff --git a/src/misc/simple-schema.ts b/src/misc/simple-schema.ts
index 83590edbf2..abbb348e24 100644
--- a/src/misc/simple-schema.ts
+++ b/src/misc/simple-schema.ts
@@ -10,6 +10,6 @@ export interface SimpleSchema {
 	ref?: string;
 	enum?: string[];
 	default?: boolean | null;
-};
+}
 
-export type SimpleObj = { [key: string]: SimpleSchema };
+export interface SimpleObj { [key: string]: SimpleSchema; }