diff --git a/CMakeLists.txt b/CMakeLists.txt
index c660ebc92..73e191d54 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,6 +18,8 @@ include_directories(${CMAKE_CURRENT_SOURCE_DIR}
                     ${KDE4_KDEUI_INCLUDES}
                     ${CMAKE_SOURCE_DIR}/experimental/libkdeclarative
                     ${CMAKE_BINARY_DIR}/experimental/libkdeclarative
+                    ${CMAKE_SOURCE_DIR}/tier1/libkarchive/src
+                    ${CMAKE_BINARY_DIR}/tier1/libkarchive/src
                     ${CMAKE_SOURCE_DIR}/threadweaver/
                     ${CMAKE_SOURCE_DIR}/plasma/extenders
                     ${CMAKE_SOURCE_DIR}/plasma/remote