diff --git a/csv-core/src/test/scala/org/bitlap/csv/core/test/StringUtilsTest.scala b/csv-core/src/test/scala/org/bitlap/csv/core/test/StringUtilsTest.scala
index ad290f70e64ad61657b852a9b55ddaf82c7e85f6..06022cca4da63d1fdf7b2573644aa1cdad1fb2d9 100644
--- a/csv-core/src/test/scala/org/bitlap/csv/core/test/StringUtilsTest.scala
+++ b/csv-core/src/test/scala/org/bitlap/csv/core/test/StringUtilsTest.scala
@@ -40,7 +40,7 @@ class StringUtilsTest extends AnyFlatSpec with Matchers {
 
   "StringUtilsTest2" should "ok" in {
     val line = """abc,"{""a"":""b"",""c"":""d""}",d,12,2,false,0.1,0.23333"""
-    val csv = StringUtils.extraJsonValues[Dimension3](line)((k, v) => Dimension3(k, v))
+    val csv = StringUtils.extractJsonValues[Dimension3](line)((k, v) => Dimension3(k, v))
     println(csv)
     assert(csv.toString() == "List(Dimension3(\"a\",\"b\"), Dimension3(\"c\",\"d\"))")
   }