diff --git a/etc/decoder.xml b/etc/decoder.xml
index 0e99eaecb..86bdc8a1d 100755
--- a/etc/decoder.xml
+++ b/etc/decoder.xml
@@ -1040,7 +1040,7 @@ Jan  8 19:32:41 tp.lan dropbear[15165]: Pubkey auth succeeded for 'root' with ke
 <!-- OpenBSD smtpd decoders -->
 
 <decoder name="smtpd">
-  <program_name>smtpd</program_name>
+  <program_name>^smtpd</program_name>
 </decoder>
 
 <decoder name="smtpd-client">