diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index 40ec20f3d..3213a16ef 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -189,7 +189,7 @@ if (ANDROID)
    endif()
 endif()
 
-if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
+if (UNIX AND NOT APPLE)
     add_subdirectory(gamemode)
 endif()
 
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index 2651daadb..289760c40 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -174,7 +174,7 @@ if(ANDROID)
     )
 endif()
 
-if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
+if (UNIX AND NOT APPLE)
   target_sources(common PRIVATE
     linux/gamemode.cpp
     linux/gamemode.h