diff --git a/ptbletter/ptbletter.cls b/ptbletter/ptbletter.cls
index 2a7af14a1ca322bcc2384752f649ff36d192a16c..9600ac3d048e6d91564aab98b014f64b0f0e3802 100644
--- a/ptbletter/ptbletter.cls
+++ b/ptbletter/ptbletter.cls
@@ -330,8 +330,8 @@
   \newcommand*\MFg{Mit freundlichem Gru\ss}
   \newcommand*\MHG{Mit herzlichen Gr\"u\ss en}
 }{%
-  \newcommand*\MFG{Yours sincerely}
-  \newcommand*\MFg{Sincerely}
-  \newcommand*\MHG{With kind regards}
+  \newcommand*\MFG{Yours sincerely,}
+  \newcommand*\MFg{Sincerely,}
+  \newcommand*\MHG{With kind regards,}
 }
 \endinput