diff --git a/run.py b/run.py
index ce1e3af..33c9d1b 100644
--- a/run.py
+++ b/run.py
@@ -203,6 +203,7 @@ def install_deps(
             "version_file": os.path.join(install_dir, "openh264.version"),
             "source_dir": source_dir,
             "install_dir": install_dir,
+            "is_windows": False,
         }
         install_openh264(**install_openh264_args)