--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -44,7 +44,7 @@ IF(CMAKE_SIZEOF_VOID_P EQUAL 4)
     SET(LIB_SUFFIX "")
     SET(PACK_ARCH "")
   ELSE(CMAKE_SIZEOF_VOID_P EQUAL 8)
-    SET(LIB_SUFFIX 64)
+    SET(LIB_SUFFIX "")
     SET(PACK_ARCH .x86_64)
 endif(CMAKE_SIZEOF_VOID_P EQUAL 4)
 
