diff --git a/umn/source/sql_syntax/use_constraints.rst b/umn/source/sql_syntax/use_constraints.rst
index a6394b2..9c043c3 100644
--- a/umn/source/sql_syntax/use_constraints.rst
+++ b/umn/source/sql_syntax/use_constraints.rst
@@ -23,7 +23,7 @@ Use Constraints
 -  Most of SHOW statements such as SHOW PROFILES and SHOW ERRORS
 -  Table maintenance statements, including ANALYZE, CHECK, CHECKSUM, OPTIMIZE, and REPAIR TABLE
 -  Statements for assigning a value to or querying variable **session**, for example, set @rowid=0;select @rowid:=@rowid+1,id from user
--  SQL statements that use -- or ``/*...*/`` to comment out a single line or multiple lines of code
+-  SQL statements that use -- or /*...*/ to comment out a single line or multiple lines of code
 -  The result of the REPEAT function contains a maximum of 1,000,000 characters (in version 3.0.9 or later).
 
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