diff --git a/test/default/wasi-test-wrapper.sh b/test/default/wasi-test-wrapper.sh
index 65014d46..30b4950c 100755
--- a/test/default/wasi-test-wrapper.sh
+++ b/test/default/wasi-test-wrapper.sh
@@ -7,5 +7,8 @@ if command -v wasmer >/dev/null; then
   wasmer run "$1" --dir=. && exit 0
 fi
 if command -v lucetc-wasi >/dev/null && command -v lucet-wasi >/dev/null; then
-  lucetc-wasi -o "${1}.so" --opt-level best "$1" && lucet-wasi --dir=.:. "$1.so" && exit 0
+  lucetc-wasi \
+    --min-reserved-size "128MiB" \
+    -o "${1}.so" --opt-level best "$1" &&
+    lucet-wasi --dir=.:. "$1.so" && exit 0
 fi