diff --git a/Sources/Splash/Theming/Color.swift b/Sources/Splash/Theming/Color.swift
index ad64279..7ffc1e9 100644
--- a/Sources/Splash/Theming/Color.swift
+++ b/Sources/Splash/Theming/Color.swift
@@ -12,8 +12,10 @@ import Cocoa
 public typealias Color = NSColor
 #endif
 
+#if !os(Linux)
 internal extension Color {
     convenience init(red: CGFloat, green: CGFloat, blue: CGFloat) {
         self.init(red: red, green: green, blue: blue, alpha: 1)
     }
 }
+#endif