diff -up pykde4-4.13.97/CMakeLists.txt.use_system_sip_dir pykde4-4.13.97/CMakeLists.txt
--- pykde4-4.13.97/CMakeLists.txt.use_system_sip_dir	2014-07-29 12:05:46.000000000 -0500
+++ pykde4-4.13.97/CMakeLists.txt	2014-08-05 07:27:03.494912024 -0500
@@ -108,8 +108,6 @@ else ()
 endif ()
 set(SIP_DISABLE_FEATURES VendorID PyQt_NoPrintRangeBug)
 
-set(SIP_FILES_INSTALL_DIR ${SHARE_INSTALL_PREFIX}/sip)
-
 # Use an extra option when compiling on Python 3.
 if (PYTHON_VERSION_MAJOR GREATER 2)
     if(PYQT4_VERSION STRGREATER "040904")
@@ -251,7 +249,7 @@ python_install(__init__.py ${PYTHON_SITE
 
 # Install the .sip files for anyone that wants to build bindings on top of PyKDE4.
 # (Don't forget the / at the end of sip/.)
-install(DIRECTORY sip/ DESTINATION ${SIP_FILES_INSTALL_DIR}/PyKDE4
+install(DIRECTORY sip/ DESTINATION ${SIP_DEFAULT_SIP_DIR}/PyKDE4
     PATTERN "*~" EXCLUDE    # This sucks, why can't I just whitelist what I _do_ want?
     PATTERN ".svn" EXCLUDE
     PATTERN "*.in" EXCLUDE)