diff --git a/Meade.net.Telescope.UnitTests/TelescopeUnitTests.cs b/Meade.net.Telescope.UnitTests/TelescopeUnitTests.cs
index f8f66fb..60f403b 100644
--- a/Meade.net.Telescope.UnitTests/TelescopeUnitTests.cs
+++ b/Meade.net.Telescope.UnitTests/TelescopeUnitTests.cs
@@ -2701,6 +2701,38 @@ namespace Meade.net.Telescope.UnitTests
         [TestCase(DriveRates.driveLunar, "58.9", "Autostar", "A4S4")]
         public void TrackingRate_Get_WhenConnected_ThenSendsCommandToTelescope(DriveRates rate, string trackingRate, string productName, string firmware)
         {
+            CultureInfo.CurrentCulture = new CultureInfo("en-GB");
+            _siderealTrackingRate = trackingRate;
+
+            ConnectTelescope(productName, firmware);
+
+            _telescope.TrackingRate = rate;
+
+            var result = _telescope.TrackingRate;
+
+            Assert.That(result, Is.EqualTo(rate));
+        }
+
+        [TestCase(DriveRates.driveSidereal, "60.1", "Autostar", "43Eg")]
+        [TestCase(DriveRates.driveSidereal, "60.0", "Autostar", "43Eg")]
+        [TestCase(DriveRates.driveLunar, "57.9", "Autostar", "43Eg")]
+        [TestCase(DriveRates.driveSidereal, "+60.1", "Autostar", "43Eg")]
+        [TestCase(DriveRates.driveSidereal, "+60.0", "Autostar", "43Eg")]
+        [TestCase(DriveRates.driveLunar, "+57.9", "Autostar", "43Eg")]
+        [TestCase(DriveRates.driveLunar, "57.3", "Autostar", "43Eg")]
+        [TestCase(DriveRates.driveLunar, "58.9", "Autostar", "43Eg")]
+        [TestCase(DriveRates.driveSidereal, "60.1", "Autostar", "A4S4")]
+        [TestCase(DriveRates.driveSidereal, "60.0", "Autostar", "A4S4")]
+        [TestCase(DriveRates.driveLunar, "57.9", "Autostar", "A4S4")]
+        [TestCase(DriveRates.driveSidereal, "+60.1", "Autostar", "A4S4")]
+        [TestCase(DriveRates.driveSidereal, "+60.0", "Autostar", "A4S4")]
+        [TestCase(DriveRates.driveLunar, "+57.9", "Autostar", "A4S4")]
+        [TestCase(DriveRates.driveLunar, "57.3", "Autostar", "A4S4")]
+        [TestCase(DriveRates.driveLunar, "58.9", "Autostar", "A4S4")]
+        public void TrackingRate_Get_WhenConnectedAndCurrentCultureIsSpanish_ThenSendsCommandToTelescope(DriveRates rate, string trackingRate, string productName, string firmware)
+        {
+            CultureInfo.CurrentCulture = new CultureInfo("es-ES");
+
             _siderealTrackingRate = trackingRate;
 
             ConnectTelescope(productName, firmware);
diff --git a/Meade.net.Telescope/Telescope.cs b/Meade.net.Telescope/Telescope.cs
index a364626..0249084 100644
--- a/Meade.net.Telescope/Telescope.cs
+++ b/Meade.net.Telescope/Telescope.cs
@@ -3668,7 +3668,7 @@ namespace ASCOM.Meade.net
 
                     rate = rate.Replace("+", string.Empty);
 
-                    var rateDouble = double.Parse(rate);
+                    var rateDouble = double.Parse(rate, CultureInfo.InvariantCulture);
 
                     DriveRates result;