diff --git a/intern/cycles/CMakeLists.txt b/intern/cycles/CMakeLists.txt
index 226218ae512..9f067bede33 100644
--- a/intern/cycles/CMakeLists.txt
+++ b/intern/cycles/CMakeLists.txt
@@ -18,7 +18,7 @@ if(WIN32 AND MSVC)
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /fp:fast -D_CRT_SECURE_NO_WARNINGS /EHsc")
 elseif(CMAKE_COMPILER_IS_GNUCC)
 	set(CYCLES_SSE2_KERNEL_FLAGS "-ffast-math -msse -msse2 -mfpmath=sse")
-	set(CYCLES_SSE3_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mfpmath=sse")
+	set(CYCLES_SSE3_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -mfpmath=sse")
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffast-math")
 endif()
 
diff --git a/intern/cycles/SConscript b/intern/cycles/SConscript
index a7a4bc22dea..43f838157b9 100644
--- a/intern/cycles/SConscript
+++ b/intern/cycles/SConscript
@@ -86,7 +86,7 @@ if env['WITH_BF_RAYOPTIMIZATION']:
         sse3_cxxflags.append('-D_CRT_SECURE_NO_WARNINGS /fp:fast /EHsc'.split())
     else:
         sse2_cxxflags.append('-ffast-math -msse -msse2 -mfpmath=sse'.split())
-        sse3_cxxflags.append('-ffast-math -msse -msse2 -msse3 -mfpmath=sse'.split())
+        sse3_cxxflags.append('-ffast-math -msse -msse2 -msse3 -mssse3 -mfpmath=sse'.split())
     
     defs.append('WITH_OPTIMIZED_KERNEL')
     optim_defs = defs[:]