diff --git a/drivers/lanzou/help.go b/drivers/lanzou/help.go
index c3f5c6bb..b3d69006 100644
--- a/drivers/lanzou/help.go
+++ b/drivers/lanzou/help.go
@@ -94,6 +94,7 @@ func RemoveJSComment(data string) string {
 		}
 		if inComment && v == '*' && i+1 < len(data) && data[i+1] == '/' {
 			inComment = false
+			i++
 			continue
 		}
 		if v == '/' && i+1 < len(data) {
@@ -108,6 +109,9 @@ func RemoveJSComment(data string) string {
 				continue
 			}
 		}
+		if inComment || inSingleLineComment {
+			continue
+		}
 		result.WriteByte(v)
 	}