diff --git a/CMakeLists.txt b/CMakeLists.txt
index e0805eb..bfb7d04 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,9 @@ INCLUDE (ExternalProject)
 LIST (APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/backbone)
 
 ExternalProject_Add (core
-                     SOURCE_DIR  ${CMAKE_SOURCE_DIR}/core
+                     SOURCE_DIR ${CMAKE_SOURCE_DIR}/core
+                     CMAKE_ARGS -DCMAKE_INSTALL_PREFIX:PATH=image
+                     INSTALL_DIR image
 )
 
 INCLUDE (CPackCommonRules)
diff --git a/cpack/CMakeLists.txt b/cpack/CMakeLists.txt
index 06b7228..56263f5 100644
--- a/cpack/CMakeLists.txt
+++ b/cpack/CMakeLists.txt
@@ -1,6 +1,4 @@
 SET (CONTACT "backbone@backbone.ws")
-SET (CPACK_PACKAGE_CONTACT "backbone@backbone.ws")
-SET (CPACK_DEBIAN_PACKAGE_MAINTAINER "backbone@backbone.ws")
 SET (DEBIAN_DEPENDENCIES "laview-latex-struct-0 (>= 0.1.0), gobject-plugin-0 (>= 0.1.0)")
 SET (DEBIAN_SECTION "Libraries")
 SET (REDHAT_DEPENDENCIES "laview-latex-struct-0 >= 0.1.0, gobject-plugin-0 >= 0.1.0")