diff --git a/CMakeLists.txt b/CMakeLists.txt
index aeabada..f46606f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 3.7)
 project (mastorss
-         VERSION 0.5.3
+         VERSION 0.5.4
          LANGUAGES CXX
 )
 
diff --git a/src/config.cpp b/src/config.cpp
index 18b1c68..08dcdf7 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -50,6 +50,11 @@ std::uint16_t read_config(string &instance, string &access_token, string &feedur
         {
             max_size = config[profile]["max_size"].asUInt();
         }
+        else
+        {
+            config[profile]["max_size"] = max_size;
+            config_changed = true;
+        }
     }
     else
     {