diff --git a/build_apprtc_collider.py b/build_apprtc_collider.py
index f9ce9aa..2758b1f 100755
--- a/build_apprtc_collider.py
+++ b/build_apprtc_collider.py
@@ -13,6 +13,7 @@
 import shutil
 import subprocess
 import sys
+import tempfile
 
 import utils
 
@@ -40,6 +41,14 @@
   subprocess.check_call([golang_path, 'build', 'collidermain'],
                         env=golang_env)
 
+  # Delete everything in the workspace except the build artifacts.
+  go_bin_dir = os.path.join(golang_workspace, 'bin')
+  tmp_dir = tempfile.mkdtemp()
+  shutil.move(go_bin_dir, tmp_dir)
+  shutil.rmtree(golang_workspace)
+  shutil.move(os.path.join(tmp_dir, 'bin'), go_bin_dir)
+  os.rmdir(tmp_dir)
+
 if __name__ == '__main__':
   sys.exit(main())