diff --git a/build/builder/common/prebuild.py b/build/builder/common/prebuild.py
index abc20f67119273d57d58b495f5166cfac54d397a..72a034070bc3e11d2346d61ff1618ad464082178 100755
--- a/build/builder/common/prebuild.py
+++ b/build/builder/common/prebuild.py
@@ -18,7 +18,6 @@ def build_deps(output_dir):
     copy_path = "prebuilts/build-tools/" + os_name + "-" + arch + "/bin/"
     abs_copy_path = os.path.abspath(os.path.join(output_dir, "../../", copy_path))
     gn_path = os.path.abspath(os.path.join(abs_copy_path, "gn"))
-    gn_path = os.path.join(abs_copy_path, "gn")
     if os.path.exists(gn_path):
         return