diff --git a/testsuite/driver/cpu_features.py b/testsuite/driver/cpu_features.py
index 66ee0756adf735a168f91a201ae942b5d4cc885d..b7e7a0d648e27e32bad98ba8901afd7563f81067 100644
--- a/testsuite/driver/cpu_features.py
+++ b/testsuite/driver/cpu_features.py
@@ -17,6 +17,9 @@ SUPPORTED_CPU_FEATURES = {
 cpu_feature_cache = None
 
 def get_cpu_features():
+    # Don't use host cpu features when testing cross ghc.
+    if config.cross:
+        return []
     try:
         # This import might fail, e.g. if "ctypes" is not available,
         # in which case we report the empty set of features.