diff --git a/XmlSchemaClassGenerator.Tests/XmlTests.cs b/XmlSchemaClassGenerator.Tests/XmlTests.cs
index 6ddd507e..b32f931a 100644
--- a/XmlSchemaClassGenerator.Tests/XmlTests.cs
+++ b/XmlSchemaClassGenerator.Tests/XmlTests.cs
@@ -739,13 +739,39 @@ public void AssemblyVisibleIsInternalInterface()
             Assert.Contains("internal partial interface INamedElement", content);
         }
 
+        [Fact]
+        public void DecimalSeparatorTest()
+        {
+            // see https://github.com/mganss/XmlSchemaClassGenerator/issues/101
+
+            const string xsd = @"<?xml version=""1.0"" encoding=""UTF-8""?>
+<xs:schema xmlns:xs=""http://www.w3.org/2001/XMLSchema"" elementFormDefault=""qualified"" attributeFormDefault=""unqualified"">
+  <xs:complexType name=""NamedType"">
+    <xs:attribute name=""SomeAttr"" type=""xs:decimal"" default=""1.5"" />
+  </xs:complexType>
+</xs:schema>";
+
+            var generator = new Generator
+            {
+                NamespaceProvider = new NamespaceProvider
+                {
+                    GenerateNamespace = key => "Test",
+                },
+                GenerateInterfaces = true,
+                AssemblyVisible = true
+            };
+            var contents = ConvertXml(nameof(ComplexTypeWithAttributeGroupExtension), xsd, generator);
+            var content = Assert.Single(contents);
+
+            Assert.Contains("private decimal _someAttr = 1.5m;", content);
+        }
+
         private static void CompareOutput(string expected, string actual)
         {
             string Normalize(string input) => Regex.Replace(input, @"[ \t]*\r\n", "\n");
             Assert.Equal(Normalize(expected), Normalize(actual));
         }
 
-
         [Theory]
         [InlineData(typeof(decimal), "decimal")]
         [InlineData(typeof(long), "long")]
diff --git a/XmlSchemaClassGenerator/TypeModel.cs b/XmlSchemaClassGenerator/TypeModel.cs
index 680d39ea..b535d0e2 100644
--- a/XmlSchemaClassGenerator/TypeModel.cs
+++ b/XmlSchemaClassGenerator/TypeModel.cs
@@ -6,6 +6,7 @@
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 using System.Diagnostics;
+using System.Globalization;
 using System.Linq;
 using System.Text.RegularExpressions;
 using System.Xml;
@@ -1275,7 +1276,7 @@ public override CodeExpression GetDefaultValueFor(string defaultString, bool att
                 return rv;
             }
 
-            return new CodePrimitiveExpression(Convert.ChangeType(defaultString, ValueType));
+            return new CodePrimitiveExpression(Convert.ChangeType(defaultString, ValueType, CultureInfo.InvariantCulture));
         }
 
         public IEnumerable<CodeAttributeDeclaration> GetRestrictionAttributes()