diff --git a/include/util/thash.h b/include/util/thash.h
index fc8785a8fb51ac781355b4e10d9f1dec63a1732e..781c22a56aaba0d449d1f711b32fe4bd75a39003 100644
--- a/include/util/thash.h
+++ b/include/util/thash.h
@@ -188,7 +188,7 @@ void *taosHashGetKey(void *data, size_t* keyLen);
 void *taosHashAcquire(SHashObj *pHashObj, const void *key, size_t keyLen);
 
 /**
- * release the prevous acquired obj
+ * release the previous acquired obj
  *
  * @param pHashObj
  * @param data