diff --git a/CMakeLists.txt b/CMakeLists.txt
index 107392d..0bfde49 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,17 +37,17 @@ if (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 3.0)
 else ()
   if (CMAKE_COMPILER_IS_GNUCXX)
     message ("** Assuming that GNU CXX uses -std=c++11 flag for C++11 compatibility.")
-    list(APPEND CMAKE_CXX_FLAGS "-std=c++11")
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
   elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     message ("** Assuming that Clang uses -std=c++11 flag for C++11 compatibility.")
-    list(APPEND CMAKE_CXX_FLAGS "-std=c++11")
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
   else()
     message ("** No CMAKE C++11 check. If the build breaks, you're on your own.")
   endif()
 endif ()
 
 # Let's enable some compilation warnings
-list(APPEND CMAKE_CXX_FLAGS "-Wall -Wextra")
+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
 
 add_definitions( -DPACKAGE="encfs" )
 
@@ -108,7 +108,7 @@ endif()
 set(CMAKE_REQUIRED_FLAGS "-Wl,--as-needed")
 CHECK_CXX_SOURCE_COMPILES("int main() {return 0;}" LINKER_SUPPORTS_WLASNEEDED)
 if(LINKER_SUPPORTS_WLASNEEDED)
-        list(APPEND EXTRA_LINKER_FLAGS "-Wl,--as-needed")
+        SET(EXTRA_LINKER_FLAGS "-Wl,--as-needed")
 endif()
 
 set(CMAKE_REQUIRED_FLAGS)