diff --git a/plugins/none-ls/servers.nix b/plugins/none-ls/servers.nix
index 6db07d8d..b6e20aa1 100644
--- a/plugins/none-ls/servers.nix
+++ b/plugins/none-ls/servers.nix
@@ -36,6 +36,9 @@ with lib; let
       bandit = {
         package = pkgs.python3Packages.bandit;
       };
+      checkstyle = {
+        package = pkgs.checkstyle;
+      };
       cppcheck = {
         package = pkgs.cppcheck;
       };
diff --git a/tests/test-sources/plugins/none-ls.nix b/tests/test-sources/plugins/none-ls.nix
index 0caae8f6..f3df6dd5 100644
--- a/tests/test-sources/plugins/none-ls.nix
+++ b/tests/test-sources/plugins/none-ls.nix
@@ -59,6 +59,7 @@
         diagnostics = {
           ansiblelint.enable = true;
           bandit.enable = true;
+          checkstyle.enable = true;
           cppcheck.enable = true;
           deadnix.enable = true;
           eslint.enable = true;