diff --git a/nixos/tests/evcc.nix b/nixos/tests/evcc.nix
index 0fc261142f78..c223977a9d82 100644
--- a/nixos/tests/evcc.nix
+++ b/nixos/tests/evcc.nix
@@ -87,6 +87,7 @@ import ./make-test-python.nix ({ pkgs, lib, ...} :
 
     with subtest("Check journal for errors"):
         _, output = machine.execute("journalctl -o cat -u evcc.service")
+        assert "FATAL" not in output
         assert "ERROR" not in output
 
     with subtest("Check systemd hardening"):