diff --git a/src/apps/bemail/versioning.rdef b/src/apps/bemail/versioning.rdef
index b18a61758e..7f8c427c2f 100644
--- a/src/apps/bemail/versioning.rdef
+++ b/src/apps/bemail/versioning.rdef
@@ -1,8 +1,7 @@
-resource(2, "BEOS:TYPE") #'MIMS' "application/x-be-executable";
 
-resource(1, "BEOS:APP_SIG") #'MIMS' "application/x-vnd.Be-MAIL";
+resource app_signature "application/x-vnd.Be-MAIL";
 
-resource(1, "BEOS:FILE_TYPES") message
+resource file_types message
 {
 	"types" = "text/x-email",
 	"types" = "application/x-person",
@@ -25,4 +24,4 @@ resource app_version
 	long_info = "BeMail 3.0.2 ©2004 Haiku"
 };
 
-resource(1, "BEOS:APP_FLAGS") #'APPF' $"00000000";
+resource app_flags B_SINGLE_LAUNCH;