diff --git a/CMakeLists.txt b/CMakeLists.txt
index 702d3ac..2581843 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -159,7 +159,7 @@ elseif(EMSCRIPTEN)
 	configure_file("${CMAKE_SOURCE_DIR}/src/wasm-index.html" "game.html" COPYONLY)
 elseif(UNIX)
 	target_link_libraries(wipeout PUBLIC m)
-	if (PLATFORM STREQUAL "SOKOL" AND LINUX)
+	if ("${PLATFORM}" STREQUAL "SOKOL" AND UNIX)
 		find_package(Threads REQUIRED)
 		find_package(X11 REQUIRED)
 		find_package(ALSA REQUIRED)