diff --git a/guava/src/test/java/org/baeldung/guava/GuavaStringTest.java b/guava/src/test/java/org/baeldung/guava/GuavaStringTest.java
index 4af04af581..be230a9b0e 100644
--- a/guava/src/test/java/org/baeldung/guava/GuavaStringTest.java
+++ b/guava/src/test/java/org/baeldung/guava/GuavaStringTest.java
@@ -65,7 +65,7 @@ public class GuavaStringTest {
 
         assertThat(result, containsString("apple-banana-orange"));
         assertThat(result, containsString("cat-dog-bird"));
-        assertThat(result, containsString("apple-banana-orange"));
+        assertThat(result, containsString("John-Jane-Adam"));
     }
 
     @Test