diff --git a/Lib/Magnet/Extensions/CollectionExtension.swift b/Lib/Magnet/Extensions/CollectionExtension.swift
index 71b2c6d..7d2dffd 100644
--- a/Lib/Magnet/Extensions/CollectionExtension.swift
+++ b/Lib/Magnet/Extensions/CollectionExtension.swift
@@ -8,6 +8,7 @@
 //  Copyright © 2015-2020 Clipy Project.
 //
 
+#if os(macOS)
 import Foundation
 
 public extension Collection where Element == Bool {
@@ -15,3 +16,4 @@ public extension Collection where Element == Bool {
         return filter { $0 }.count
     }
 }
+#endif
diff --git a/Lib/Magnet/Extensions/IntExtension.swift b/Lib/Magnet/Extensions/IntExtension.swift
index 5eff77c..379f6b9 100644
--- a/Lib/Magnet/Extensions/IntExtension.swift
+++ b/Lib/Magnet/Extensions/IntExtension.swift
@@ -8,6 +8,7 @@
 //  Copyright © 2015-2020 Clipy Project.
 //
 
+#if os(macOS)
 import Cocoa
 import Carbon
 
@@ -22,3 +23,4 @@ public extension Int {
         return NSEvent.ModifierFlags(carbonModifiers: self)
     }
 }
+#endif
diff --git a/Lib/Magnet/Extensions/KeyExtension.swift b/Lib/Magnet/Extensions/KeyExtension.swift
index e0aa9ba..1f166fe 100644
--- a/Lib/Magnet/Extensions/KeyExtension.swift
+++ b/Lib/Magnet/Extensions/KeyExtension.swift
@@ -8,6 +8,7 @@
 //  Copyright © 2015-2020 Clipy Project.
 //
 
+#if os(macOS)
 import Foundation
 import Sauce
 
@@ -73,3 +74,4 @@ public extension Key {
         }
     }
 }
+#endif
diff --git a/Lib/Magnet/Extensions/NSEventExtension.swift b/Lib/Magnet/Extensions/NSEventExtension.swift
index 76da882..8619182 100644
--- a/Lib/Magnet/Extensions/NSEventExtension.swift
+++ b/Lib/Magnet/Extensions/NSEventExtension.swift
@@ -8,6 +8,7 @@
 //  Copyright © 2015-2020 Clipy Project.
 //
 
+#if os(macOS)
 import Cocoa
 import Carbon
 import Sauce
@@ -118,3 +119,4 @@ extension NSEvent {
         return KeyCombo(key: key, cocoaModifiers: self.modifierFlags)
     }
 }
+#endif
diff --git a/Lib/Magnet/HotKey.swift b/Lib/Magnet/HotKey.swift
index 37d15fc..62a1c7c 100644
--- a/Lib/Magnet/HotKey.swift
+++ b/Lib/Magnet/HotKey.swift
@@ -8,6 +8,7 @@
 //  Copyright © 2015-2020 Clipy Project.
 //
 
+#if os(macOS)
 import Cocoa
 import Carbon
 
@@ -106,3 +107,4 @@ extension HotKey {
                self.hotKeyRef == hotKey.hotKeyRef
     }
 }
+#endif
diff --git a/Lib/Magnet/HotKeyCenter.swift b/Lib/Magnet/HotKeyCenter.swift
index 1b7dc8d..c058c94 100644
--- a/Lib/Magnet/HotKeyCenter.swift
+++ b/Lib/Magnet/HotKeyCenter.swift
@@ -8,6 +8,7 @@
 //  Copyright © 2015-2020 Clipy Project.
 //
 
+#if os(macOS)
 import Cocoa
 import Carbon
 
@@ -168,3 +169,4 @@ extension HotKeyCenter {
         }
     }
 }
+#endif
diff --git a/Lib/Magnet/KeyCombo.swift b/Lib/Magnet/KeyCombo.swift
index 6dd3152..e8a3885 100644
--- a/Lib/Magnet/KeyCombo.swift
+++ b/Lib/Magnet/KeyCombo.swift
@@ -8,6 +8,7 @@
 //  Copyright © 2015-2020 Clipy Project.
 //
 
+#if os(macOS)
 import Cocoa
 import Carbon
 import Sauce
@@ -178,3 +179,4 @@ open class KeyCombo: NSObject, NSCopying, NSCoding, Codable {
 extension KeyCombo {
     public struct InitializeError: Error {}
 }
+#endif
diff --git a/Lib/Magnet/ModifierEventHandler.swift b/Lib/Magnet/ModifierEventHandler.swift
index a1ed1b0..19c5852 100644
--- a/Lib/Magnet/ModifierEventHandler.swift
+++ b/Lib/Magnet/ModifierEventHandler.swift
@@ -8,6 +8,7 @@
 //  Copyright © 2015-2020 Clipy Project.
 //
 
+#if os(macOS)
 import Cocoa
 
 open class ModifierEventHandler {
@@ -70,3 +71,4 @@ extension ModifierEventHandler {
         }
     }
 }
+#endif