diff --git a/Tests/Importer/ZaaImporter/LaurisItemTest.cs b/Tests/Importer/ZaaImporter/LaurisItemTest.cs
index 458d203..173cd5e 100755
--- a/Tests/Importer/ZaaImporter/LaurisItemTest.cs
+++ b/Tests/Importer/ZaaImporter/LaurisItemTest.cs
@@ -29,6 +29,7 @@ namespace Tests.Importer.ZaaImporter
     class LaurisItemTest
     {
         [Test]
+        [TestCase("BE: 5.2 [-2 - 2] mmol/l", "BE", 5.2, "mmol/l", -2, 2, false)]
         [TestCase("Natrium: 139 [135 - 145] mmol/l", "Natrium", 139, "mmol/l", 135, 145, true)]
         [TestCase("Kalium: 5.2 [3.5 - 5] mmol/l", "Kalium", 5.2, "mmol/l", 3.5, 5, false)]
         public void ParseLaurisWithBothLimits(
diff --git a/zaaReloaded2/Importer/ZaaImporter/LaurisItem.cs b/zaaReloaded2/Importer/ZaaImporter/LaurisItem.cs
index 71d7e19..1b26a08 100755
--- a/zaaReloaded2/Importer/ZaaImporter/LaurisItem.cs
+++ b/zaaReloaded2/Importer/ZaaImporter/LaurisItem.cs
@@ -134,7 +134,7 @@ namespace zaaReloaded2.Importer.ZaaImporter
         {
             if (match.Groups["limits"].Success)
             {
-                Regex limitRegex = new Regex(@"\[(?<limit1>[\d.]+)?\s*(?<operator>\S+)\s*(?<limit2>[\d.]+)?]");
+                Regex limitRegex = new Regex(@"\[(?<limit1>[-\d.]+)?\s*(?<operator>\S+)\s*(?<limit2>[-\d.]+)?]");
                 Match limitMatch = limitRegex.Match(match.Groups["limits"].Value);
                 if (limitMatch.Groups["limit1"].Success && limitMatch.Groups["limit2"].Success)
                 {