diff --git a/validation/errors.go b/validation/errors.go
index 0bb4fea95..cc4f47c18 100644
--- a/validation/errors.go
+++ b/validation/errors.go
@@ -137,6 +137,14 @@ func HasErrorCode(err error, code ErrorCode) bool {
 	return false
 }
 
+var newLineReplacer = strings.NewReplacer("\n", "\\n", "\r", "\\r")
+
+// propertyValueString returns the string representation of the given value.
+// Structs, interfaces, maps and slices are converted to compacted JSON strings.
+// It tries to improve readability by:
+// - limiting the string to 100 characters
+// - removing leading and trailing whitespaces
+// - escaping newlines
 func propertyValueString(v interface{}) string {
 	if v == nil {
 		return ""
@@ -151,11 +159,14 @@ func propertyValueString(v interface{}) string {
 			s = string(raw)
 		}
 	case reflect.Invalid:
-		s = ""
+		return ""
 	default:
 		s = fmt.Sprint(ft.Interface())
 	}
-	return limitString(s, 100)
+	s = limitString(s, 100)
+	s = strings.TrimSpace(s)
+	s = newLineReplacer.Replace(s)
+	return s
 }
 
 // ruleSetError is a container for transferring multiple errors reported by RuleSet.
diff --git a/validation/errors_test.go b/validation/errors_test.go
index e91897a52..7aa2f0691 100644
--- a/validation/errors_test.go
+++ b/validation/errors_test.go
@@ -79,12 +79,28 @@ func TestNewPropertyError(t *testing.T) {
 			InputValue:    nil,
 			ExpectedValue: "",
 		},
+		"blank lines": {
+			InputValue:    ` 		SELECT value FROM my-table WHERE value = "abc"    `,
+			ExpectedValue: `SELECT value FROM my-table WHERE value = "abc"`,
+		},
+		"multiline": {
+			InputValue: `
+SELECT value FROM
+my-table WHERE value = "abc"
+`,
+			ExpectedValue: "SELECT value FROM\\nmy-table WHERE value = \"abc\"",
+		},
+		"carriage return": {
+			InputValue:    "return\rcarriage",
+			ExpectedValue: "return\\rcarriage",
+		},
 	} {
 		t.Run(name, func(t *testing.T) {
 			err := NewPropertyError(
 				"name",
 				test.InputValue,
 				&RuleError{Message: "msg"})
+			fmt.Println(err)
 			assert.Equal(t, &PropertyError{
 				PropertyName:  "name",
 				PropertyValue: test.ExpectedValue,