diff --git a/src/bash/filter.sh b/src/bash/filter.sh
old mode 100644
new mode 100755
diff --git a/src/bash/filterTest.sh b/src/bash/filterTest.sh
old mode 100644
new mode 100755
diff --git a/src/cpp/eMailShrinker.cpp b/src/cpp/eMailShrinker.cpp
index cf76cd8..21a12a8 100644
--- a/src/cpp/eMailShrinker.cpp
+++ b/src/cpp/eMailShrinker.cpp
@@ -33,8 +33,8 @@
 ////////////////////////////////////////////////////////////////////////////
 
 #include "version.hpp"
-const std::string kaz::LAST_VERSION_NUM ("2.12");
-const std::string kaz::LAST_VERSION_DATE ("2022-12-27");
+const std::string kaz::LAST_VERSION_NUM ("2.13");
+const std::string kaz::LAST_VERSION_DATE ("2022-12-28");
 const std::string kaz::LAST_VERSION (LAST_VERSION_NUM+" "+LAST_VERSION_DATE+" eMailShrinker");
 
 #include <iostream>
diff --git a/src/cpp/kazMisc.cpp b/src/cpp/kazMisc.cpp
index ff9cbfb..1fc1f97 100644
--- a/src/cpp/kazMisc.cpp
+++ b/src/cpp/kazMisc.cpp
@@ -292,7 +292,7 @@ kaz::base64Decode (string &content) {
       continue;
     }
 
-    if (isBase64 (c)) {
+    if (!isBase64 (c)) {
       content.resize (lastOK-content.begin ());
       LOG ("kazMisc::base64Decode bug: bad base64 format. (content: " << content << ")");
     }