diff --git a/CMakeLists.txt b/CMakeLists.txt
index d3e02c12f..333d8fa91 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -247,13 +247,13 @@ IF(EXISTS "${CMAKE_ROOT}/Modules/CPack.cmake")
   SET(CPACK_SOURCE_PACKAGE_FILE_NAME
     "cmake-${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}.${CMake_VERSION_PATCH}")
   IF(NOT DEFINED CPACK_SYSTEM_NAME)
-    SET(CPACK_SYSTEM_NAME ${CMAKE_SYSTEM_NAME})
+    SET(CPACK_SYSTEM_NAME ${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_PROCESSOR})
   ENDIF(NOT DEFINED CPACK_SYSTEM_NAME)
   IF(${CPACK_SYSTEM_NAME} MATCHES Windows)
     IF(CMAKE_CL_64)
-      SET(CPACK_SYSTEM_NAME win64)
+      SET(CPACK_SYSTEM_NAME win64-${CMAKE_SYSTEM_PROCESSOR})
     ELSE(CMAKE_CL_64)
-      SET(CPACK_SYSTEM_NAME win32)
+      SET(CPACK_SYSTEM_NAME win32-${CMAKE_SYSTEM_PROCESSOR})
     ENDIF(CMAKE_CL_64)
   ENDIF(${CPACK_SYSTEM_NAME} MATCHES Windows)
   IF(NOT DEFINED CPACK_PACKAGE_FILE_NAME)