diff --git a/src/add-ons/mail_daemon/outbound_protocols/smtp/Jamfile b/src/add-ons/mail_daemon/outbound_protocols/smtp/Jamfile
index 361c0771dd..59e2aa674b 100644
--- a/src/add-ons/mail_daemon/outbound_protocols/smtp/Jamfile
+++ b/src/add-ons/mail_daemon/outbound_protocols/smtp/Jamfile
@@ -8,7 +8,7 @@ SubDirHdrs [ FDirName $(HAIKU_TOP) headers os add-ons mail_daemon ] ;
 
 local sources =
 	ConfigView.cpp
-	smtp.cpp
+	SMTP.cpp
 	md5c.c
 ;
 
@@ -37,5 +37,5 @@ DoCatalogs SMTP :
 	x-vnd.Haiku-SMTP
 	:
 	ConfigView.cpp
-	smtp.cpp
+	SMTP.cpp
 ;
diff --git a/src/add-ons/mail_daemon/outbound_protocols/smtp/smtp.cpp b/src/add-ons/mail_daemon/outbound_protocols/smtp/SMTP.cpp
similarity index 99%
rename from src/add-ons/mail_daemon/outbound_protocols/smtp/smtp.cpp
rename to src/add-ons/mail_daemon/outbound_protocols/smtp/SMTP.cpp
index 3713246c7f..41ed6e0371 100644
--- a/src/add-ons/mail_daemon/outbound_protocols/smtp/smtp.cpp
+++ b/src/add-ons/mail_daemon/outbound_protocols/smtp/SMTP.cpp
@@ -10,7 +10,7 @@
 //!	Implementation of the SMTP protocol
 
 
-#include "smtp.h"
+#include "SMTP.h"
 
 #include <map>
 
diff --git a/src/add-ons/mail_daemon/outbound_protocols/smtp/smtp.h b/src/add-ons/mail_daemon/outbound_protocols/smtp/SMTP.h
similarity index 100%
rename from src/add-ons/mail_daemon/outbound_protocols/smtp/smtp.h
rename to src/add-ons/mail_daemon/outbound_protocols/smtp/SMTP.h