diff --git a/core-java-modules/core-java-numbers-7/src/test/java/com/baeldung/securerandompositivelong/SecureRandomPositiveLongUnitTest.java b/core-java-modules/core-java-numbers-7/src/test/java/com/baeldung/securerandompositivelong/SecureRandomPositiveLongUnitTest.java
index b70dc50e24..79830f8a31 100644
--- a/core-java-modules/core-java-numbers-7/src/test/java/com/baeldung/securerandompositivelong/SecureRandomPositiveLongUnitTest.java
+++ b/core-java-modules/core-java-numbers-7/src/test/java/com/baeldung/securerandompositivelong/SecureRandomPositiveLongUnitTest.java
@@ -16,7 +16,7 @@ public class SecureRandomPositiveLongUnitTest {
         assertThat(randomPositiveLong).isPositive();
 
         //Double pc = 1.0 / Math.pow(2, 63);
-        Double pc = 1.0 / Long.MAX_VALUE;
+        double pc = 1.0 / Long.MAX_VALUE;
         System.out.printf("%.40f", pc);
 
         assertThat(pc).isLessThan(0.00000000000000001);