diff --git a/build-scripts/build_llvm.py b/build-scripts/build_llvm.py
index 68ef640e3..0dec48d78 100755
--- a/build-scripts/build_llvm.py
+++ b/build-scripts/build_llvm.py
@@ -270,6 +270,11 @@ def main():
         action="store_true",
         help="use clang instead of gcc",
     )
+    parser.add_argument(
+        "--use-ccache",
+        action="store_true",
+        help="enable ccache for faster incremental LLVM builds (disabled by default to reduce CI storage consumption, recommended for local development)",
+    )
     parser.add_argument(
         "--extra-cmake-flags",
         type=str,