diff --git a/opy/lib/inspect.py b/opy/lib/inspect.py
diff --git a/opy/test.sh b/opy/test.sh
@@ -110,15 +110,15 @@ oil-byterun-failed() {
  done
 }

-# TODO: byterun/run.sh has this too
 byterun-unit() {
-  pushd byterun
-  for t in test_*.py; do
+  pushd $THIS_DIR/..
+  for t in opy/byterun/test_*.py; do
    echo
    echo "*** $t"
    echo
-    PYTHONPATH=. ./$t
+    PYTHONPATH=. $t
  done
+  popd
 }

 # Isolated failures.