diff --git a/benchmark/benchmark.py b/benchmark/benchmark.py
index 41cec248e..12aaa88f7 100644
--- a/benchmark/benchmark.py
+++ b/benchmark/benchmark.py
@@ -25,6 +25,7 @@ def run_native(hostpython, code):
 
 def run_wasm(code):
     s = conftest.SeleniumWrapper()
+    s.load_package('numpy')
     s.run(code)
     try:
         runtime = float(s.logs[-1])