diff --git a/src/libprojectM/MilkdropPresetFactory/CMakeLists.txt b/src/libprojectM/MilkdropPresetFactory/CMakeLists.txt
index bc1ea0227..bc8590793 100644
--- a/src/libprojectM/MilkdropPresetFactory/CMakeLists.txt
+++ b/src/libprojectM/MilkdropPresetFactory/CMakeLists.txt
@@ -7,7 +7,7 @@ cmake_minimum_required(VERSION 2.4.0)
 
 SET(MilkdropPresetFactory_SOURCES BuiltinFuncs.cpp Func.cpp MilkdropPreset.cpp Param.hpp PresetFrameIO.cpp CustomShape.cpp  Eval.cpp MilkdropPresetFactory.cpp PerPixelEqn.cpp BuiltinParams.cpp InitCond.cpp Parser.cpp CustomWave.cpp Expr.cpp PerPointEqn.cpp Param.cpp PerFrameEqn.cpp IdlePreset.cpp)
 
-SET (CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} -fPIC)
+SET (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
 
 INCLUDE_DIRECTORIES(${projectM_SOURCE_DIR} ${Renderer_SOURCE_DIR})
 LINK_DIRECTORIES(${projectM_BINARY_DIR} ${Renderer_BINARY_DIR})