diff --git a/Datastructure/Heap/MaxPriorityQueue.java b/Datastructure/Heap/MaxPriorityQueue.java
index 5dc9f33..feb2de5 100644
--- a/Datastructure/Heap/MaxPriorityQueue.java
+++ b/Datastructure/Heap/MaxPriorityQueue.java
@@ -1,4 +1,4 @@
-package Datastructures.Heap;
+package Datastructure.Heap;
 /*********************************************************************
  * This code makes a Priority Queue and returns tha max value from that
  * so the nam MaxPriorityQueue.
diff --git a/Datastructure/List/ArrayList.java b/Datastructure/List/ArrayList.java
index 83bd6d1..1725cdd 100644
--- a/Datastructure/List/ArrayList.java
+++ b/Datastructure/List/ArrayList.java
@@ -1,4 +1,4 @@
-package Datastructures.List;
+package Datastructure.List;
 
 import java.util.Arrays;
 import java.util.Iterator;
diff --git a/NumberSystem/Ceil.java b/NumberSystem/Ceil.java
index bb384af..d66bbd3 100644
--- a/NumberSystem/Ceil.java
+++ b/NumberSystem/Ceil.java
@@ -1,4 +1,4 @@
-package Misc;
+package NumberSystem;
 
 /**
  * The program is used to find the ceil values of the required input.
diff --git a/NumberSystem/Floor.java b/NumberSystem/Floor.java
index 7cb4de1..2a6ecbb 100644
--- a/NumberSystem/Floor.java
+++ b/NumberSystem/Floor.java
@@ -1,4 +1,4 @@
-package Misc;
+package NumberSystem;
 
 /**
  * The program is used to find the floor values of the required input.
diff --git a/NumberSystem/SumOfDigits.java b/NumberSystem/SumOfDigits.java
index 66eac16..ed87861 100644
--- a/NumberSystem/SumOfDigits.java
+++ b/NumberSystem/SumOfDigits.java
@@ -1,3 +1,4 @@
+package NumberSystem;
 /***********************************************************************
  *
  * A function that returns the sum of digits in an integer.