diff --git a/messagecomposer/CMakeLists.txt b/messagecomposer/CMakeLists.txt
index 20a05f0d8..ab5cf7ac0 100644
--- a/messagecomposer/CMakeLists.txt
+++ b/messagecomposer/CMakeLists.txt
@@ -1,45 +1,49 @@
 set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${KDE4_ENABLE_EXCEPTIONS}" )
 
 add_subdirectory( tests )
 
 set( messagecomposer_src
 
      composer.cpp
      behaviour.cpp
      attachmentpart.cpp
      finalmessage.cpp
      infopart.cpp
      messagepart.cpp
      skeletonmessagejob.cpp
      textpart.cpp
 
      job.cpp
      contentjob.cpp
      maintextjob.cpp
      multipartjob.cpp
 )
 
+include_directories(
+    ${Boost_INCLUDE_DIRS}
+)
+
 kde4_add_library( messagecomposer SHARED ${messagecomposer_src} )
 target_link_libraries( messagecomposer ${KDE4_KIO_LIBS} kmime )
 set_target_properties( messagecomposer PROPERTIES VERSION ${GENERIC_LIB_VERSION} SOVERSION ${GENERIC_LIB_SOVERSION} )
 
 install( TARGETS messagecomposer EXPORT kdepimlibsLibraryTargets ${INSTALL_TARGETS_DEFAULT_ARGS} )
 install( FILES
          messagecomposer_export.h
           
          composer.h
          behaviour.h
          attachmentpart.h
          finalmessage.h
          infopart.h
          messagepart.h
          skeletonmessagejob.h
          textpart.h
 
          job.h
          contentjob.h
          maintextjob.h
          multipartjob.h
 
          DESTINATION ${INCLUDE_INSTALL_DIR}/messagecomposer COMPONENT Devel )