diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8029c46..07cae5d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -34,10 +34,6 @@ add_definitions(-DQRC_SOURCE_PATH="${PROJECT_SOURCE_DIR}/src/qml")
 add_definitions(-DQT_QML_DEBUG)
 endif(DEVELOP)
 
-if(WIN32)
-add_definitions(-DWINDOWS)
-endif(WIN32)
-
 add_executable(KittehPlayer ${SOURCES} ${qml_QRC})
 
 # Use the Qml/Quick modules from Qt 5.