diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1f355b9..367a5e0 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -482,7 +482,7 @@ jobs:
             -O3 -g0 -lm \
             -o wasm3
     - name: Test
-      run: ./build/wasm3 ./test/wasi/test.wasm
+      run: ./build/wasm3 ./test/wasi/simple/test.wasm
 
   build-with-logs:
     name: maintenance (debug logs)
@@ -511,7 +511,7 @@ jobs:
             -O3 -g0 -lm \
             -o wasm3
     - name: Test
-      run: ./build/wasm3 ./test/wasi/test.wasm > /dev/null
+      run: ./build/wasm3 ./test/wasi/simple/test.wasm > /dev/null
 
   build-preprocessed-ops:
     name: maintenance (preprocess ops)
@@ -533,7 +533,7 @@ jobs:
             -O3 -g0 -lm \
             -o wasm3
     - name: Test
-      run: ./build/wasm3 ./test/wasi/test.wasm
+      run: ./build/wasm3 ./test/wasi/simple/test.wasm
 
   build-python:
     runs-on: ubuntu-20.04
diff --git a/.gitignore b/.gitignore
index b22e421..c5e6674 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 /build*
 /source-*
-test/.spec
+test/.spec-*
 test/*.log
 test/tailcall/*.S
 node_modules/
diff --git a/test/run-spec-test.py b/test/run-spec-test.py
index e03b1d1..6ed0e07 100755
--- a/test/run-spec-test.py
+++ b/test/run-spec-test.py
@@ -163,7 +163,7 @@ if not (os.path.isdir(spec_dir)):
                 parts = pathlib.Path(zipInfo.filename).parts
                 newpath = str(pathlib.Path(*parts[1:-1]))
                 newfn   = str(pathlib.Path(*parts[-1:]))
-                ensure_path(newpath)
+                ensure_path(os.path.join(spec_dir, newpath))
                 newpath = os.path.join(spec_dir, newpath, newfn)
                 zipInfo.filename = newpath
                 zipFile.extract(zipInfo)