diff --git a/.changeset/serious-flowers-smash.md b/.changeset/serious-flowers-smash.md
new file mode 100644
index 0000000000..274250b1dd
--- /dev/null
+++ b/.changeset/serious-flowers-smash.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog-backend-module-github': patch
+---
+
+Fixed bug where repository filter was including all archived repositories
diff --git a/plugins/catalog-backend-module-github/src/providers/GitHubEntityProvider.ts b/plugins/catalog-backend-module-github/src/providers/GitHubEntityProvider.ts
index 991b380112..eb5b9d67e2 100644
--- a/plugins/catalog-backend-module-github/src/providers/GitHubEntityProvider.ts
+++ b/plugins/catalog-backend-module-github/src/providers/GitHubEntityProvider.ts
@@ -185,9 +185,11 @@ export class GitHubEntityProvider implements EntityProvider {
     const repositoryFilter = this.config.filters?.repository;
 
     const matchingRepositories = repositories.filter(r => {
-      return !r.isArchived && repositoryFilter
-        ? repositoryFilter?.test(r.name)
-        : true && r.defaultBranchRef?.name;
+      return (
+        !r.isArchived &&
+        (!repositoryFilter || repositoryFilter.test(r.name)) &&
+        r.defaultBranchRef?.name
+      );
     });
     return matchingRepositories;
   }