diff --git a/CMakeLists.txt b/CMakeLists.txt
index f7df54e9..e2ecf112 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,8 +36,8 @@ set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS} -g -DDEBUG -Wall")
 
 # -fPIC is for compiling on 64bit
 if( CMAKE_SIZEOF_VOID_P EQUAL 8 )
-  set(CMAKE_C_FLAGS "-fPIC" ${CMAKE_C_FLAGS})
-  set(CMAKE_C_FLAGS_DEBUG "-fPIC" ${CMAKE_C_FLAGS_DEBUG})
+  set(CMAKE_C_FLAGS "-fPIC ${CMAKE_C_FLAGS}")
+  set(CMAKE_C_FLAGS_DEBUG "-fPIC ${CMAKE_C_FLAGS_DEBUG}")
 endif( CMAKE_SIZEOF_VOID_P EQUAL 8 )
 
 set(CTEST_MEMORYCHECK_COMMAND "/usr/bin/valgrind")