diff --git a/assignments/nbproject/project.xml b/assignments/nbproject/project.xml
index ec9c9401e07d97eb2d28c832cc9985585aeb9f06..d7234beae9aa3ea90d012607e6919204e1a4942a 100644
--- a/assignments/nbproject/project.xml
+++ b/assignments/nbproject/project.xml
@@ -1,43 +1,44 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://www.netbeans.org/ns/project/1">
-    <type>org.netbeans.modules.java.j2seproject</type>
-    <configuration>
-        <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
-            <name>Networked Graphics MV3500 assignments</name>
-            <source-roots>
-                <root id="src.dir"/>
-            </source-roots>
-            <test-roots>
-                <root id="test.src.dir"/>
-            </test-roots>
-        </data>
-        <spellchecker-wordlist xmlns="http://www.netbeans.org/ns/spellchecker-wordlist/1">
-            <word>accessor</word>
-            <word>autogeneration</word>
-            <word>classpath</word>
-            <word>Cygwin</word>
-            <word>deliverables</word>
-            <word>docx</word>
-            <word>https</word>
-            <word>interarrival</word>
-            <word>javadoc</word>
-            <word>localhost</word>
-            <word>multicast</word>
-            <word>Netbeans</word>
-            <word>netcat</word>
-            <word>NPS</word>
-            <word>pdu</word>
-            <word>README</word>
-            <word>simkit</word>
-            <word>simulationists</word>
-            <word>SISO</word>
-            <word>subpackage</word>
-            <word>teardown</word>
-            <word>txt</word>
-            <word>UML</word>
-            <word>unicast</word>
-            <word>wikipedia</word>
-            <word>Wireshark</word>
-        </spellchecker-wordlist>
-    </configuration>
-</project>
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://www.netbeans.org/ns/project/1">
+    <type>org.netbeans.modules.java.j2seproject</type>
+    <configuration>
+        <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
+            <name>Networked Graphics MV3500 assignments</name>
+            <explicit-platform explicit-source-supported="true"/>
+            <source-roots>
+                <root id="src.dir"/>
+            </source-roots>
+            <test-roots>
+                <root id="test.src.dir"/>
+            </test-roots>
+        </data>
+        <spellchecker-wordlist xmlns="http://www.netbeans.org/ns/spellchecker-wordlist/1">
+            <word>accessor</word>
+            <word>autogeneration</word>
+            <word>classpath</word>
+            <word>Cygwin</word>
+            <word>deliverables</word>
+            <word>docx</word>
+            <word>https</word>
+            <word>interarrival</word>
+            <word>javadoc</word>
+            <word>localhost</word>
+            <word>multicast</word>
+            <word>Netbeans</word>
+            <word>netcat</word>
+            <word>NPS</word>
+            <word>pdu</word>
+            <word>README</word>
+            <word>simkit</word>
+            <word>simulationists</word>
+            <word>SISO</word>
+            <word>subpackage</word>
+            <word>teardown</word>
+            <word>txt</word>
+            <word>UML</word>
+            <word>unicast</word>
+            <word>wikipedia</word>
+            <word>Wireshark</word>
+        </spellchecker-wordlist>
+    </configuration>
+</project>