diff --git a/backend/src/graphql/arg/SearchUsersArgs.ts b/backend/src/graphql/arg/SearchUsersArgs.ts
index 52da77852..2a94d8998 100644
--- a/backend/src/graphql/arg/SearchUsersArgs.ts
+++ b/backend/src/graphql/arg/SearchUsersArgs.ts
@@ -12,8 +12,8 @@ export default class SearchUsersArgs {
   pageSize?: number
 
   @Field(() => Boolean, { nullable: true })
-  notActivated?: boolean
+  notActivated?: boolean | null
 
   @Field(() => Boolean, { nullable: true })
-  isDeleted?: boolean
+  isDeleted?: boolean | null
 }
diff --git a/backend/src/graphql/resolver/AdminResolver.ts b/backend/src/graphql/resolver/AdminResolver.ts
index e0a35b864..1905bde34 100644
--- a/backend/src/graphql/resolver/AdminResolver.ts
+++ b/backend/src/graphql/resolver/AdminResolver.ts
@@ -58,7 +58,7 @@ export class AdminResolver {
 
     const filterCriteria: ObjectLiteral[] = []
     if (notActivated !== null) {
-      filterCriteria.push({ emailChecked: notActivated })
+      filterCriteria.push({ emailChecked: !notActivated })
     }
 
     if (isDeleted !== null) {