diff --git a/entrypoint/parser/logstash/expression.go b/entrypoint/parser/logstash/expression.go
index f929bc69..090d5ccf 100644
--- a/entrypoint/parser/logstash/expression.go
+++ b/entrypoint/parser/logstash/expression.go
@@ -61,7 +61,7 @@ func toWhenExpression(lsExpression string) (string, error) {
 		case TERNARY:
 
 		default:
-			return ktokens, fmt.Errorf("unknow token %s", tok.Type)
+			return ktokens, fmt.Errorf("unknow token %d", tok.Type)
 		}
 		ktokens = ktokens + separator + value
 		separator = " "
diff --git a/processors/filter-eval/eval_test.go b/processors/filter-eval/eval_test.go
index c1cb53ac..e0289814 100644
--- a/processors/filter-eval/eval_test.go
+++ b/processors/filter-eval/eval_test.go
@@ -167,7 +167,7 @@ func TestTemplateErrorUrlNotFound(t *testing.T) {
 		},
 	)
 
-	assert.EqualError(t, err, "Get http://127.0.0.1/iuherfiuhoiuehroiuhzeroiuhaiuzheifuhaerg: dial tcp 127.0.0.1:80: getsockopt: connection refused")
+	assert.Regexp(t, "Get http://127.0.0.1/iuherfiuhoiuehroiuhzeroiuhaiuzheifuhaerg: dial tcp 127.0.0.1:80: .*: connection refused", err.Error())
 }
 
 func TestTemplateErrorPathIsDirectory(t *testing.T) {
diff --git a/processors/filter-grok/grok_processor.go b/processors/filter-grok/grok_processor.go
index c02d2f26..46270b78 100644
--- a/processors/filter-grok/grok_processor.go
+++ b/processors/filter-grok/grok_processor.go
@@ -81,7 +81,7 @@ func (p *processor) fixGrokMatch(conf interface{}) (map[string][]string, error)
 			case string:
 				fixMatch[fieldName] = []string{v}
 			default:
-				return fixMatch, fmt.Errorf("unsupported match value format %V", reflect.TypeOf(v))
+				return fixMatch, fmt.Errorf("unsupported match value format %v", reflect.TypeOf(v))
 			}
 		}
 	default: