diff --git a/CMakeLists.txt b/CMakeLists.txt
index 27f073fd..9a7d6939 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,7 +21,7 @@ MESSAGE(STATUS "BUILD TYPE: " ${CMAKE_BUILD_TYPE})
 
 # setup compiler options
 IF(CMAKE_COMPILER_IS_GNUCXX)
-    SET(CMAKE_CXX_FLAGS "-Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-but-set-variable -std=gnu++0x")
+    SET(CMAKE_CXX_FLAGS "-Wall -Wextra -Werror -Wno-unused-parameter -Wno-unused-but-set-variable -Wno-unused-result -std=gnu++0x")
     SET(CMAKE_CXX_FLAGS_DEBUG "-O1 -g -ggdb -fno-inline")
     SET(CMAKE_CXX_FLAGS_RELEASE "-O2 -Wl,-s")
     SET(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g")