diff --git a/build.sh b/build.sh
index 202d2cc4..6fd742cf 100755
--- a/build.sh
+++ b/build.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-ENGINE=PCAP
+ENGINE=ULOG2
 # ENGINE=PCAP
 
 g++ libipulog.c -c -o libipulog.o -Wno-write-strings