diff --git a/abc.rc b/abc.rc
index 895d92a68..9a062332e 100644
--- a/abc.rc
+++ b/abc.rc
@@ -21,7 +21,7 @@ set gnuplotwin wgnuplot.exe
 set gnuplotunix gnuplot
 
 # Niklas Een's commands
-load_plugin C:\_projects\abc\_TEST\bip\bip_2010-10-19.exe "BIP"
+load_plugin C:\_projects\abc\_TEST\bip\bip_2011-04-15.exe "BIP"
 
 # standard aliases
 alias b balance
diff --git a/src/aig/llb/module.make b/src/aig/llb/module.make
index 028e9fe4b..8a4d34f5b 100644
--- a/src/aig/llb/module.make
+++ b/src/aig/llb/module.make
@@ -17,5 +17,6 @@ SRC +=    src/aig/llb/llb.c \
     src/aig/llb/llb2Image.c \
     src/aig/llb/llb3Image.c \
     src/aig/llb/llb3Nonlin.c \
+    src/aig/llb/llb4Cluster.c \
     src/aig/llb/llb4Image.c \
     src/aig/llb/llb4Nonlin.c