diff --git a/plugins/zynaddsubfx/CMakeLists.txt b/plugins/zynaddsubfx/CMakeLists.txt
index fdcb66e1e..1af6035e7 100644
--- a/plugins/zynaddsubfx/CMakeLists.txt
+++ b/plugins/zynaddsubfx/CMakeLists.txt
@@ -47,7 +47,7 @@ IF(LMMS_BUILD_WIN32)
 	ADD_DEFINITIONS(-DPTW32_STATIC_LIB)
 ENDIF(LMMS_BUILD_WIN32)
 
-INCLUDE_DIRECTORIES(${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/fltk/ ${CMAKE_CURRENT_SOURCE_DIR} ${FFTW3F_INCLUDE_DIRS})
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/fltk/ ${CMAKE_CURRENT_SOURCE_DIR} ${FFTW3F_INCLUDE_DIRS} ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_BINARY_DIR} )
 
 set(ZASF_CORE_LIBS
     zynaddsubfx_input