diff --git a/src/servers/registrar/registrar.rdef b/src/servers/registrar/registrar.rdef
index 084dccff96..6cac5059eb 100644
--- a/src/servers/registrar/registrar.rdef
+++ b/src/servers/registrar/registrar.rdef
@@ -7,7 +7,7 @@
    application:/x-vnd.obos.app-name
    */
 
-resource app_signature "application/x-vnd.OBOS-registrar";
+resource app_signature "application/x-vnd.OBOS-Registrar";
 
 /* BEOS:APP_FLAGS :
    00000000 = 							   SINGLE LAUNCH