diff --git a/encodings/New-PostscriptEncodingTable.ps1 b/encodings/New-PostscriptEncodingTable.ps1
index 80236092..bd29165b 100644
--- a/encodings/New-PostscriptEncodingTable.ps1
+++ b/encodings/New-PostscriptEncodingTable.ps1
@@ -79,6 +79,8 @@ Get-Content `
 	$EncodingCode = [int32] $_.EncodingCode;
 	if ( $EncodingCode -lt 0x20 ) {
         $EncodingTable[ $EncodingCode ] = '.notdef';
+    } elseif ( $UnicodeCode -eq 0 ) {
+        $EncodingTable[ $EncodingCode ] = '.notdef';
     } elseif ( $GlyphNames[ $UnicodeCode ] ) {
         $EncodingTable[ $EncodingCode ] = $GlyphNames[ $UnicodeCode ];
     } else {
diff --git a/stamps/lib/cp1251.ps b/stamps/lib/cp1251.ps
index 08e27fad..4e859911 100644
Binary files a/stamps/lib/cp1251.ps and b/stamps/lib/cp1251.ps differ
diff --git a/stamps/lib/cp1253.ps b/stamps/lib/cp1253.ps
index 5f6ebd2e..5d81fd83 100644
Binary files a/stamps/lib/cp1253.ps and b/stamps/lib/cp1253.ps differ