diff --git a/tests/run-wasi.sh b/tests/run-wasi.sh
index ee65f4a28..719c4819e 100755
--- a/tests/run-wasi.sh
+++ b/tests/run-wasi.sh
@@ -1,2 +1,2 @@
 mkdir -p build/wasi-testdir
-~/.wasmtime/bin/wasmtime run --mapdir /::build/wasi-testdir $1 $2
\ No newline at end of file
+~/.wasmtime/bin/wasmtime run --dir build/wasi-testdir::/ $1 $2
\ No newline at end of file