diff --git a/src/Vulkan/BUILD.gn b/src/Vulkan/BUILD.gn
index cb804b4..613c1fb 100644
--- a/src/Vulkan/BUILD.gn
+++ b/src/Vulkan/BUILD.gn
@@ -203,9 +203,9 @@
   script = "write_icd_json.py"
   args = [
     "--input",
-    rebase_path(input_file, root_out_dir),
+    rebase_path(input_file, root_build_dir),
     "--output",
-    rebase_path(output_icd_file, root_out_dir),
+    rebase_path(output_icd_file, root_build_dir),
     "--library_path",
     library_path,
   ]