diff --git a/rules/Makefile.am b/rules/Makefile.am
index 2b8447740e..cffe8c7143 100644
--- a/rules/Makefile.am
+++ b/rules/Makefile.am
@@ -17,6 +17,7 @@ modbus-events.rules \
 mqtt-events.rules \
 nfs-events.rules \
 ntp-events.rules \
+pop3-events.rules \
 quic-events.rules \
 rfb-events.rules \
 smb-events.rules \