diff --git a/test/default/randombytes.c b/test/default/randombytes.c
index 551afaf4..bdc5cca4 100644
--- a/test/default/randombytes.c
+++ b/test/default/randombytes.c
@@ -161,7 +161,9 @@ main(void)
 #endif
     printf("OK\n");
 
+#ifndef __EMSCRIPTEN__
     randombytes_set_implementation(&randombytes_salsa20_implementation);
+#endif
 
     return 0;
 }