diff --git a/lua/cmp/context.lua b/lua/cmp/context.lua
index 0411a54..86c9c29 100644
--- a/lua/cmp/context.lua
+++ b/lua/cmp/context.lua
@@ -74,7 +74,7 @@ end
 ---@return integer
 context.get_offset = function(self, keyword_pattern)
   return self.cache:ensure({ 'get_offset', keyword_pattern, self.cursor_before_line }, function()
-    return pattern.offset(keyword_pattern .. '\\m$', self.cursor_before_line) or self.cursor.col
+    return pattern.offset([[\%(]] .. keyword_pattern .. [[\)\m$]], self.cursor_before_line) or self.cursor.col
   end)
 end