diff --git a/src/main/java/com/msb/model/GameModel.java b/src/main/java/com/msb/model/GameModel.java
index 13cb17c..ae11f28 100644
--- a/src/main/java/com/msb/model/GameModel.java
+++ b/src/main/java/com/msb/model/GameModel.java
@@ -130,12 +130,19 @@ public class GameModel {
 
     public void save() {
         File file = new File("F:\\bingor\\temp\\tank.data");
+        ObjectOutputStream oos = null;
         try {
-            ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(file));
+            oos = new ObjectOutputStream(new FileOutputStream(file));
             oos.writeObject(myTank);
             oos.writeObject(gameObjects);
         } catch (IOException e) {
             e.printStackTrace();
+        } finally {
+            try {
+                oos.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
         }
     }
 
@@ -148,6 +155,12 @@ public class GameModel {
             gameObjects = (List<GameObject>) ois.readObject();
         } catch (IOException | ClassNotFoundException e) {
             e.printStackTrace();
+        } finally {
+            try {
+                ois.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
         }
 
     }