diff --git a/tests/smoke_test/test_basic.py b/tests/smoke_test/test_basic.py
index 615695ff4..eb6d42b45 100644
--- a/tests/smoke_test/test_basic.py
+++ b/tests/smoke_test/test_basic.py
@@ -83,4 +83,4 @@ def test_kernel_not_tainted(shell):
     """Check if the kernel is not tainted - do it at the end of the
     test suite to increase the chance of catching issues."""
     output = shell.run_check("cat /proc/sys/kernel/tainted")
-    assert output == "0\n", f"Kernel tainted: {output}"
+    assert "\n".join(output) == "0", f"Kernel tainted: {output}"
diff --git a/tests/supervisor_test/test_supervisor.py b/tests/supervisor_test/test_supervisor.py
index 92623e327..8351fb6c5 100644
--- a/tests/supervisor_test/test_supervisor.py
+++ b/tests/supervisor_test/test_supervisor.py
@@ -197,4 +197,4 @@ def test_kernel_not_tainted(shell):
     """Check if the kernel is not tainted - do it at the end of the
     test suite to increase the chance of catching issues."""
     output = shell.run_check("cat /proc/sys/kernel/tainted")
-    assert output == "0\n", f"Kernel tainted: {output}"
+    assert "\n".join(output) == "0", f"Kernel tainted: {output}"