diff --git a/CMakeLists.txt b/CMakeLists.txt
index f0aa0d2e62..8f7a7ef360 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -35,8 +35,8 @@ if( NOT WIN32 )
     # SetAlignedPointerInInternalField requires at least 2 byte alignment and -falign-functions will set alignment
     # to machine specific value which should be greater than 2.
     if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
-        set(CMAKE_CXX_FLAGS "-falign-functions -fPIC -m64 -mss3" CACHE STRING "C++ compiler flags for all build types.")
-        set(CMAKE_C_FLAGS "-falign-functions -fPIC -m64 -mss3" CACHE STRING "C compiler flags for all build types.")
+        set(CMAKE_CXX_FLAGS "-falign-functions -fPIC -m64 -msse3" CACHE STRING "C++ compiler flags for all build types.")
+        set(CMAKE_C_FLAGS "-falign-functions -fPIC -m64 -msse3" CACHE STRING "C compiler flags for all build types.")
     elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
         # TODO: Find out which architecture optimizations to use on aarch64.
         # We should probably target the 64bit version of the Raspberry Pi 2 as minimum.