diff --git a/core-java-modules/core-java-string-conversions-3/src/main/java/com/baeldung/stringtoint/StringToIntConverter.java b/core-java-modules/core-java-string-conversions-3/src/main/java/com/baeldung/stringtoint/StringToIntConverter.java
index fd19ca61d6..52d227c379 100644
--- a/core-java-modules/core-java-string-conversions-3/src/main/java/com/baeldung/stringtoint/StringToIntConverter.java
+++ b/core-java-modules/core-java-string-conversions-3/src/main/java/com/baeldung/stringtoint/StringToIntConverter.java
@@ -46,8 +46,8 @@ public class StringToIntConverter {
         return parsedInt.orElse(Integer.MIN_VALUE);
     }
 
-    public static int convertStringToIntUsingNumberUtils(String input){
-        return NumberUtils.toInt(input, Integer.MIN_VALUE);
+    public static int convertStringToIntUsingNumberUtils(String input, Integer defaultValue){
+        return NumberUtils.toInt(input, defaultValue);
     }
 }
 
diff --git a/core-java-modules/core-java-string-conversions-3/src/test/java/com/baeldung/stringtoint/StringToIntConverterUnitTest.java b/core-java-modules/core-java-string-conversions-3/src/test/java/com/baeldung/stringtoint/StringToIntConverterUnitTest.java
index a1d365b361..1bd7450914 100644
--- a/core-java-modules/core-java-string-conversions-3/src/test/java/com/baeldung/stringtoint/StringToIntConverterUnitTest.java
+++ b/core-java-modules/core-java-string-conversions-3/src/test/java/com/baeldung/stringtoint/StringToIntConverterUnitTest.java
@@ -22,7 +22,7 @@ class StringToIntConverterUnitTest {
             Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingIntegerValueOf(data.input));
             Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingOptional(data.input));
             Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingIntegerDecode(data.input));
-            Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingNumberUtils(data.input));
+            Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingNumberUtils(data.input,Integer.MIN_VALUE ));
         });
     }
 
@@ -36,7 +36,7 @@ class StringToIntConverterUnitTest {
             Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingIntegerParseInt(data.input));
             Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingIntegerValueOf(data.input));
             Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingOptional(data.input));
-            Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingNumberUtils(data.input));
+            Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingNumberUtils(data.input, Integer.MIN_VALUE));
             Assertions.assertEquals(data.expectedOutput, StringToIntConverter.convertStringToIntUsingIntegerDecode(data.input));
         });
     }