diff --git a/app/services/check_logger.rb b/app/services/check_logger.rb
index bd0124e..e04b077 100644
--- a/app/services/check_logger.rb
+++ b/app/services/check_logger.rb
@@ -22,7 +22,7 @@ class CheckLogger
     check_log.exit_status = result.exit_status
     check_log.raw_response = result.stdout
 
-    if result.exit_status > 0 # rubocop:disable Style/NumericPredicate
+    if result.exit_status.nil? || result.exit_status > 0 # rubocop:disable Style/NumericPredicate
       check_log.error = result.stderr
       check_log.status = :failed
     end
diff --git a/test/services/check_logger_test.rb b/test/services/check_logger_test.rb
index cbd1044..29d3f0d 100644
--- a/test/services/check_logger_test.rb
+++ b/test/services/check_logger_test.rb
@@ -39,6 +39,16 @@ class CheckLoggerTest < ActiveSupport::TestCase
     assert @logger.check_log.failed?
   end
 
+  test "should log an error when there is not exit status" do
+    result = SystemCommandResult.new("command", nil, nil, "an error")
+    @logger.log :after_command, result
+
+    assert_nil @logger.check_log.raw_response
+    assert_equal "an error", @logger.check_log.error
+    assert_nil @logger.check_log.exit_status
+    assert @logger.check_log.failed?
+  end
+
   test "should log a successful parsed response" do
     response = OpenStruct.new(
       domain: "example.fr",