diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
index 748526310..970d2fc16 100644
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -151,7 +151,6 @@ endif()
 
 IF( APPLE )
     list(APPEND client_SRCS cocoainitializer_mac.mm)
-    list(APPEND client_SRCS socketapisocket_mac.mm)
     list(APPEND client_SRCS systray.mm)
 
     if(SPARKLE_FOUND AND BUILD_UPDATER)