diff --git a/ext/gd/libgd/gd_interpolation.c b/ext/gd/libgd/gd_interpolation.c
index bc1b3d344e6..5d9e991127c 100644
--- a/ext/gd/libgd/gd_interpolation.c
+++ b/ext/gd/libgd/gd_interpolation.c
@@ -62,11 +62,6 @@ TODO:
 #include "gdhelpers.h"
 #include "gd_intern.h"
 
-#ifdef _MSC_VER
-# pragma optimize("t", on)
-# include <emmintrin.h>
-#endif
-
 #ifndef HAVE_FLOORF
 # define HAVE_FLOORF 0
 #endif