diff --git a/tools/build/build.py b/tools/build/build.py
index 6121d1b0..606afdae 100755
--- a/tools/build/build.py
+++ b/tools/build/build.py
@@ -44,7 +44,9 @@ def write_path(file):
         os.makedirs(path)
 
 # doesn't work here
-# os.chdir(os.path.dirname(__file__))
+base_path = os.path.dirname(__file__)
+if base_path:
+    os.chdir(base_path)
 
 source_path = '../../source/'
 build_path = '../../build/'