diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,8 +46,8 @@ message(STATUS "APFEL: APFEL_DOWNLOAD_PDFS=${APFEL_DOWNLOAD_PDFS}")
 # CONFIG SCRIPT ========================================================
 set(prefix ${CMAKE_INSTALL_PREFIX})
 set(exec_prefix "${prefix}")
-set(includedir "${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
-set(libdir "${prefix}/${CMAKE_INSTALL_LIBDIR}")
+set(includedir "${CMAKE_INSTALL_FULL_INCLUDEDIR}")
+set(libdir "${CMAKE_INSTALL_FULL_LIBDIR}")
 set(PACKAGE_VERSION "${apfel_VERSION}")
 configure_file("${PROJECT_SOURCE_DIR}/bin/apfel-config.in" "${PROJECT_BINARY_DIR}/bin/apfel-config")
 configure_file("${PROJECT_SOURCE_DIR}/bin/apfel.in" "${PROJECT_BINARY_DIR}/bin/apfel")