diff --git a/Sources/ColorTool/main.swift b/Sources/ColorTool/main.swift
index c5b06b2..0993f99 100644
--- a/Sources/ColorTool/main.swift
+++ b/Sources/ColorTool/main.swift
@@ -21,7 +21,7 @@ struct ColorTool: ParsableCommand {
     @OptionGroup var options: ColorToolOptions
     
     var colorStyle: ColorStyle { ColorStyle(rawValue: options.style) ?? .all }
-    var extensionFileName: String { "\(options.extensionName)+Color\(options.extensionSuffix).swift" }
+    var extensionFileName: String { "\(options.extensionName)+\(options.extensionSuffix).swift" }
     var extensionFilePath: String { "\(options.extensionOutputPath)/\(extensionFileName)" }
     
     public func run() throws {