diff -r 23efbb7ab889 -r 9024e9d370c7 src/HOL/IsaMakefile
--- a/src/HOL/IsaMakefile	Tue Sep 28 15:12:50 1999 +0200
+++ b/src/HOL/IsaMakefile	Tue Sep 28 15:30:52 1999 +0200
@@ -206,7 +206,7 @@
   UNITY/Deadlock.ML UNITY/Deadlock.thy UNITY/FP.ML UNITY/FP.thy\
   UNITY/Union.ML UNITY/Union.thy UNITY/Handshake.ML UNITY/Handshake.thy\
   UNITY/TimerArray.ML UNITY/TimerArray.thy\
-  UNITY/Extend.ML UNITY/Extend.thy\
+  UNITY/Extend.ML UNITY/Extend.thy UNITY/Project.ML UNITY/Project.thy\
   UNITY/Follows.ML UNITY/Follows.thy\
   UNITY/GenPrefix.thy UNITY/GenPrefix.ML \
   UNITY/LessThan.ML UNITY/LessThan.thy \