diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0e946d3e6a7..3e017f53378 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,6 +11,7 @@ add_definitions(-DTARGET_i386)
 
 include_directories(${REACTOS_SOURCE_DIR}/tools/unicode)
 include_directories(./include)
+include_directories(./include/reactos)
 include_directories(./include/reactos/wine)
 
 add_subdirectory(tools)
diff --git a/include/psdk/CMakeLists.txt b/include/psdk/CMakeLists.txt
index 29c93627cc9..f609c13a707 100644
--- a/include/psdk/CMakeLists.txt
+++ b/include/psdk/CMakeLists.txt
@@ -6,18 +6,18 @@ MACRO (MACRO_ADD_INTERFACES)
    GET_FILENAME_COMPONENT(FILE ${_in_FILE} NAME_WE)
 
    ADD_CUSTOM_COMMAND(
-     OUTPUT ${REACTOS_SOURCE_DIR}/include/psdk/${FILE}.h
-     COMMAND widl -I${REACTOS_SOURCE_DIR}/include/dxsdk -I. -I${REACTOS_SOURCE_DIR}/include -I${REACTOS_SOURCE_DIR}/include/psdk -m32 --win32 -h -H ${REACTOS_SOURCE_DIR}/include/psdk/${FILE}.h ${REACTOS_SOURCE_DIR}/include/psdk/${FILE}.idl
+     OUTPUT ${REACTOS_BINARY_DIR}/include/psdk/${FILE}.h
+     COMMAND widl -I${REACTOS_SOURCE_DIR}/include/dxsdk -I. -I${REACTOS_SOURCE_DIR}/include -I${REACTOS_SOURCE_DIR}/include/psdk -m32 --win32 -h -H ${REACTOS_BINARY_DIR}/include/psdk/${FILE}.h ${REACTOS_SOURCE_DIR}/include/psdk/${FILE}.idl
      DEPENDS widl
    )
 
    SET_SOURCE_FILES_PROPERTIES(
-     ${REACTOS_SOURCE_DIR}/include/psdk/${FILE}.h
+     ${REACTOS_BINARY_DIR}/include/psdk/${FILE}.h
      PROPERTIES
      GENERATED TRUE
    )
 
-    ADD_CUSTOM_TARGET(build_${FILE}_idl ALL DEPENDS ${REACTOS_SOURCE_DIR}/include/psdk/${FILE}.h)
+    ADD_CUSTOM_TARGET(build_${FILE}_idl ALL DEPENDS ${REACTOS_BINARY_DIR}/include/psdk/${FILE}.h)
 
  ENDFOREACH(_in_FILE ${ARGN})