diff --git a/assignments/nbproject/project.properties b/assignments/nbproject/project.properties
index 40ccd6b9f7888a34f276a96773b07566f2f9e23a..930f0ea1079fc1c2cff7087a8703ee500046eefe 100644
--- a/assignments/nbproject/project.properties
+++ b/assignments/nbproject/project.properties
@@ -43,6 +43,9 @@ endorsed.classpath=
 file.reference.dis-enums-1.3.jar=../lib/dis-enums-1.3.jar
 file.reference.opendis7-full.jar=../lib/opendis7-full.jar
 file.reference.open-dis_4.16.jar=../lib/open-dis_4.16.jar
+file.reference.simkit-doc.zip=../lib/simkit-doc.zip
+file.reference.simkit-src.zip=../lib/simkit-src.zip
+file.reference.simkit.jar=../lib/simkit.jar
 #file.reference.opendis7-enumerations-classes.jar=../lib/opendis7-enumerations-classes.jar
 #file.reference.opendis7-pdus-classes.jar=../lib/opendis7-pdus-classes.jar
 includes=**
@@ -52,7 +55,10 @@ jar.index=${jnlp.enabled}
 javac.classpath=\
     ${file.reference.opendis7-full.jar}:\
     ${file.reference.dis-enums-1.3.jar}:\
-    ${file.reference.open-dis_4.16.jar}
+    ${file.reference.open-dis_4.16.jar}:\
+    ${file.reference.simkit-doc.zip}:\
+    ${file.reference.simkit-src.zip}:\
+    ${file.reference.simkit.jar}
 #   ${file.reference.opendis7-enumerations-classes.jar}:\
 #   ${file.reference.opendis7-pdus-classes.jar}:\