diff --git a/src/Refitter.Core/OperationNameGenerator.cs b/src/Refitter.Core/OperationNameGenerator.cs
index 02dd5036..1256d1b0 100644
--- a/src/Refitter.Core/OperationNameGenerator.cs
+++ b/src/Refitter.Core/OperationNameGenerator.cs
@@ -35,7 +35,8 @@ public string GetOperationName(
             .CapitalizeFirstCharacter()
             .ConvertKebabCaseToPascalCase()
             .ConvertRouteToCamelCase()
-            .ConvertSpacesToPascalCase();
+            .ConvertSpacesToPascalCase()
+            .ConvertColonsToPascalCase();
 
     public bool CheckForDuplicateOperationIds(
         OpenApiDocument document)
diff --git a/src/Refitter.Core/RefitGenerator.cs b/src/Refitter.Core/RefitGenerator.cs
index 1f429bf8..5ce9d2a1 100644
--- a/src/Refitter.Core/RefitGenerator.cs
+++ b/src/Refitter.Core/RefitGenerator.cs
@@ -17,7 +17,7 @@ public class RefitGenerator(RefitGeneratorSettings settings, OpenApiDocument doc
     /// <returns>A new instance of the <see cref="RefitGenerator"/> class.</returns>
     public static async Task<RefitGenerator> CreateAsync(RefitGeneratorSettings settings)
     {
-        var openApiDocument = await OpenApiDocumentFactory.CreateAsync(settings);
+        var openApiDocument = await GetOpenApiDocument(settings);
 
         ProcessTagFilters(openApiDocument, settings.IncludeTags);
         ProcessPathFilters(openApiDocument, settings.IncludePathMatches);
@@ -27,6 +27,36 @@ public static async Task<RefitGenerator> CreateAsync(RefitGeneratorSettings sett
         return new RefitGenerator(settings, openApiDocument);
     }
 
+    private static async Task<OpenApiDocument> GetOpenApiDocument(RefitGeneratorSettings settings)
+    {
+        var specialCharacters = new[]
+        {
+            ":"
+        };
+
+        return specialCharacters.Aggregate(
+            await OpenApiDocumentFactory.CreateAsync(settings),
+            SanitizePath);
+    }
+
+    private static OpenApiDocument SanitizePath(
+        OpenApiDocument openApiDocument, 
+        string stringToRemove)
+    {
+        var paths = openApiDocument.Paths.Keys
+            .Where(pathKey => pathKey.Contains(stringToRemove))
+            .ToArray();
+
+        foreach (var path in paths)
+        {
+            var value = openApiDocument.Paths[path];
+            openApiDocument.Paths.Remove(path);
+            openApiDocument.Paths.Add(path.Replace(stringToRemove, string.Empty), value);
+        }
+
+        return openApiDocument;
+    }
+
     private static void ProcessContractFilter(OpenApiDocument openApiDocument, bool removeUnusedSchema, string[] includeSchemaMatches)
     {
         if (!removeUnusedSchema)
diff --git a/src/Refitter.Core/StringCasingExtensions.cs b/src/Refitter.Core/StringCasingExtensions.cs
index 32ccb7c7..e2804c83 100644
--- a/src/Refitter.Core/StringCasingExtensions.cs
+++ b/src/Refitter.Core/StringCasingExtensions.cs
@@ -38,6 +38,9 @@ public static string ConvertRouteToCamelCase(this string str)
 
     public static string CapitalizeFirstCharacter(this string str)
     {
+        if (string.IsNullOrEmpty(str))
+            return str;
+
         return str.Substring(0, 1).ToUpperInvariant() +
                str.Substring(1, str.Length - 1);
     }
@@ -52,4 +55,15 @@ public static string ConvertSpacesToPascalCase(this string str)
 
         return string.Join(string.Empty, parts);
     }
+
+    public static string ConvertColonsToPascalCase(this string str)
+    {
+        var parts = str.Split(':');
+        for (var i = 0; i < parts.Length; i++)
+        {
+            parts[i] = parts[i].CapitalizeFirstCharacter();
+        }
+
+        return string.Join(string.Empty, parts);
+    }
 }
\ No newline at end of file
diff --git a/src/Refitter.Tests/Examples/ColonsInPathTests.cs b/src/Refitter.Tests/Examples/ColonsInPathTests.cs
new file mode 100644
index 00000000..4f2f21dd
--- /dev/null
+++ b/src/Refitter.Tests/Examples/ColonsInPathTests.cs
@@ -0,0 +1,90 @@
+using FluentAssertions;
+using FluentAssertions.Execution;
+using Refitter.Core;
+using Refitter.Tests.Build;
+using Xunit;
+
+namespace Refitter.Tests.Examples;
+
+public class ColonsInPathTests
+{
+    private const string OpenApiSpec = @"
+swagger: '2.0'
+info:
+  title: Reference parameters
+  version: v0.0.1
+paths:
+  '/orders/{orderId}/:orderItems/{orderItemId}':
+    parameters:
+      - $ref: '#/parameters/OrderId'
+      - $ref: '#/parameters/OrderItemId'
+    delete:
+      summary: Delete an order item
+      description: >-
+        This method allows to remove an order item from an order, by specifying
+        their ids.
+      responses:
+        '204':
+          description: No Content.
+parameters:
+  OrderId:
+    name: orderId
+    in: path
+    description: Identifier of the order.
+    required: true
+    type: string
+    format: uuid
+  OrderItemId:
+    name: orderItemId
+    in: path
+    description: Identifier of the order item.
+    required: true
+    type: string
+    format: uuid
+";
+
+    [Fact]
+    public async Task Can_Generate_Code()
+    {
+        var generateCode = await GenerateCode();
+        generateCode.Should().NotBeNullOrWhiteSpace();
+    }
+
+    [Fact]
+    public async Task Generates_Path_Without_Colons()
+    {
+        var generateCode = await GenerateCode();
+        using var scope = new AssertionScope();
+        generateCode.Should().NotContain("/:");
+    }
+
+    [Fact]
+    public async Task Can_Build_Generated_Code()
+    {
+        var generateCode = await GenerateCode();
+        BuildHelper
+            .BuildCSharp(generateCode)
+            .Should()
+            .BeTrue();
+    }
+
+    private static async Task<string> GenerateCode()
+    {
+        var swaggerFile = await CreateSwaggerFile(OpenApiSpec);
+        var settings = new RefitGeneratorSettings { OpenApiPath = swaggerFile };
+
+        var sut = await RefitGenerator.CreateAsync(settings);
+        var generateCode = sut.Generate();
+        return generateCode;
+    }
+
+    private static async Task<string> CreateSwaggerFile(string contents)
+    {
+        var filename = $"{Guid.NewGuid()}.yml";
+        var folder = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
+        Directory.CreateDirectory(folder);
+        var swaggerFile = Path.Combine(folder, filename);
+        await File.WriteAllTextAsync(swaggerFile, contents);
+        return swaggerFile;
+    }
+}
\ No newline at end of file
diff --git a/src/Refitter.Tests/StringCasingExtensionTests.cs b/src/Refitter.Tests/StringCasingExtensionTests.cs
index f8924da0..f8820a4a 100644
--- a/src/Refitter.Tests/StringCasingExtensionTests.cs
+++ b/src/Refitter.Tests/StringCasingExtensionTests.cs
@@ -21,6 +21,11 @@ public void CanConvertToCamelCase(string input, string expected)
     public void CanCaptilalizeFirstLetter(string input, string expected)
         => input.CapitalizeFirstCharacter().Should().Be(expected);
 
+    [Theory]
+    [InlineData("", "")]
+    public void CaptilalizeFirstLetterHandlesEmptyStrings(string input, string expected)
+        => input.CapitalizeFirstCharacter().Should().Be(expected);
+
     [Theory]
     [InlineData("foo/bar", "fooBar")]
     public void CanConvertRouteToCamelCase(string input, string expected)
@@ -30,4 +35,9 @@ public void CanConvertRouteToCamelCase(string input, string expected)
     [InlineData("foo bar", "FooBar")]
     public void CanConvertSpacesToPascalCase(string input, string expected)
         => input.ConvertSpacesToPascalCase().Should().Be(expected);
+
+    [Theory]
+    [InlineData("foo:bar", "FooBar")]
+    public void CanConvertColonsToPascalCase(string input, string expected)
+        => input.ConvertColonsToPascalCase().Should().Be(expected);
 }
\ No newline at end of file