fix typo
diff --git a/rocketmq-rocksdb/README.md b/rocketmq-rocksdb/README.md
index 21181fd..d3a7038 100644
--- a/rocketmq-rocksdb/README.md
+++ b/rocketmq-rocksdb/README.md
@@ -27,7 +27,7 @@
8.add the string "src/main/java/org/rocksdb/RemoveConsumeQueueCompactionFilter.java" to the file rocksdb/java/CMakeLists.txt
9.add the string "org.rocksdb.RemoveConsumeQueueCompactionFilter" to the file rocksdb/java/CMakeLists.txt
10.add the string "org.rocksdb.RemoveConsumeQueueCompactionFilter\" to the file rocksdb/java/Makefile
-11.add the string "addutilities/compaction_filters/remove_consumequeue_compactionfilter.cc \" to the file rocksdb/src.mk
+11.add the string "utilities/compaction_filters/remove_consumequeue_compactionfilter.cc \" to the file rocksdb/src.mk
12.add the string "java/rocksjni/remove_consumequeue_compactionfilterjni.cc \" to the file rocksdb/src.mk
13.add the string '"utilities/compaction_filters/remove_consumequeue_compactionfilter.cc",' to the file rocksdb/TARGETS
