diff --git a/test/utils-prng.c b/test/utils-prng.c
index 0cf53dd..ecadbdc 100644
--- a/test/utils-prng.c
+++ b/test/utils-prng.c
@@ -83,7 +83,7 @@ store_rand_128_data (void *addr, prng_rand_128_data_t *d, int aligned)
     }
     else
     {
-#ifdef __SSE2__
+#if defined(__SSE2__) && !defined(__EMSCRIPTEN__)
         /* workaround for http://gcc.gnu.org/PR55614 */
         _mm_storeu_si128 (addr, _mm_loadu_si128 ((__m128i *)d));
         return;