diff --git a/README.md b/README.md
index 388d56b..4010c6e 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ JsonAssert.assertThat(JSON).field("bigdecimal").asBigDecimal().isEqualTo(BigDeci
 JsonAssert.assertThat(JSON).field("myprop").matches("foo.*")
     
 // Assert first property in Object matches
-JsonAssert.assertThat(JSON).firstField("lastProp").isEqualTo(1);
+JsonAssert.assertThat(JSON).firstField("firstProp").isEqualTo(1);
 
 // Assert last property in Object matches
 JsonAssert.assertThat(JSON).lastField("lastProp").isEqualTo(3);