diff --git a/src/mesa/drivers/dri/i965/Makefile.am b/src/mesa/drivers/dri/i965/Makefile.am
index ecc1e766f11..9293820c217 100644
--- a/src/mesa/drivers/dri/i965/Makefile.am
+++ b/src/mesa/drivers/dri/i965/Makefile.am
@@ -42,7 +42,8 @@ AM_CFLAGS = \
 	$(DEFINES) \
 	$(VISIBILITY_CFLAGS) \
 	$(LIBDRM_CFLAGS) \
-	$(VALGRIND_CFLAGS)
+	$(VALGRIND_CFLAGS) \
+	-msse3
 
 AM_CXXFLAGS = $(AM_CFLAGS)