diff --git a/test/externalTests/common.sh b/test/externalTests/common.sh
index 37bd8d74d..2a40cf8a0 100644
--- a/test/externalTests/common.sh
+++ b/test/externalTests/common.sh
@@ -306,7 +306,7 @@ function truffle_clean
 
 function hardhat_clean
 {
-    rm -rf artifacts/ cache/
+    rm -rf build/ artifacts/ cache/
 }
 
 function run_test