diff --git a/InterfaceGenerator.Tests/MethodGenerationTests.cs b/InterfaceGenerator.Tests/MethodGenerationTests.cs
index 393f68f..c0ca273 100644
--- a/InterfaceGenerator.Tests/MethodGenerationTests.cs
+++ b/InterfaceGenerator.Tests/MethodGenerationTests.cs
@@ -194,7 +194,7 @@ namespace InterfaceGenerator.Tests
             method.ReturnType.Should().Be(typeof(void));
 
             var parameters = method.GetParameters();
-            parameters.Should().HaveCount(5);
+            parameters.Should().HaveCount(7);
             parameters.Select(x => x.IsOptional).Should().AllBeEquivalentTo(true);
 
             parameters[0].DefaultValue.Should().Be("cGFyYW0=");
@@ -202,6 +202,8 @@ namespace InterfaceGenerator.Tests
             parameters[2].DefaultValue.Should().Be(0.1f);
             parameters[3].DefaultValue.Should().Be(0.2d);
             parameters[4].DefaultValue.Should().Be(0.3d);
+            parameters[5].DefaultValue.Should().Be(true);
+            parameters[6].DefaultValue.Should().Be(false);
 
             _sut.VoidMethodWithOptionalParams();
         }
@@ -283,7 +285,9 @@ namespace InterfaceGenerator.Tests
             string stringConstant = StringConstant,
             float floatLiteral = 0.1f,
             double doubleLiteral = 0.2,
-            decimal decimalLiteral = 0.3m)
+            decimal decimalLiteral = 0.3m,
+            bool trueLiteral = true,
+            bool falseLiteral = false)
         {
         }
 
diff --git a/InterfaceGenerator/Attributes.cs b/InterfaceGenerator/Attributes.cs
index 6079624..754b8ec 100644
--- a/InterfaceGenerator/Attributes.cs
+++ b/InterfaceGenerator/Attributes.cs
@@ -1,6 +1,4 @@
-using System;
-
-namespace InterfaceGenerator
+namespace InterfaceGenerator
 {
     
     internal class Attributes
diff --git a/InterfaceGenerator/AutoInterfaceGenerator.cs b/InterfaceGenerator/AutoInterfaceGenerator.cs
index 9709410..b89febc 100644
--- a/InterfaceGenerator/AutoInterfaceGenerator.cs
+++ b/InterfaceGenerator/AutoInterfaceGenerator.cs
@@ -336,6 +336,9 @@ namespace InterfaceGenerator
                     case nameof(Decimal):
                         writer.Write(" = {0}m", param.ExplicitDefaultValue);
                         break;
+                    case nameof(Boolean):
+                        writer.Write(" = {0}", param.ExplicitDefaultValue.ToString().ToLower());
+                        break;
                     default:
                         writer.Write(" = {0}", param.ExplicitDefaultValue);
                         break;
diff --git a/InterfaceGenerator/InterfaceGenerator.csproj b/InterfaceGenerator/InterfaceGenerator.csproj
index 998f4fa..fe9cbc1 100644
--- a/InterfaceGenerator/InterfaceGenerator.csproj
+++ b/InterfaceGenerator/InterfaceGenerator.csproj
@@ -3,7 +3,7 @@
         <TargetFramework>netstandard2.1</TargetFramework>
         <LangVersion>9.0</LangVersion>
         <Nullable>enable</Nullable>
-        <PackageVersion>1.0.3</PackageVersion>
+        <PackageVersion>1.0.4</PackageVersion>
     </PropertyGroup>
     
     <PropertyGroup>