--- CMakeLists.txt.orig	2016-10-04 20:59:03.000000000 +0900
+++ CMakeLists.txt	2016-10-04 21:13:43.000000000 +0900
@@ -92,6 +92,7 @@
     include_directories(
         ${Boost_INCLUDE_DIRS}
         ${QGPGME_INCLUDE_DIR}
+        %PREFIX%/include/KDE4
     )
 endif(QGPGME_FOUND)