diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -33,3 +33,7 @@
 ## 0.5.1.0 -- 2020-03-07
 
 * Fifth version revised A. Fixed issue with the order of actions in 'dobutokO2' function.
+
+## 0.5.2.0 -- 2020-03-07
+
+* Fifth version revised B. Fixed issue with the name of the recorded informational sound file in the 'recAndProcess' function.
diff --git a/DobutokO/Sound.hs b/DobutokO/Sound.hs
--- a/DobutokO/Sound.hs
+++ b/DobutokO/Sound.hs
@@ -419,7 +419,7 @@
      norm "_x.wav" ;
      if isPrefixOf "nx." file 
        then putStr "" 
-       else renameFile "8_x.wav" (file ++ ".wav") ;
+       else renameFile "8_x.wav" file ;
      removeFile "x.wav" ;
      removeFile "_x.wav" ;
      dir <- listDirectory "." ;
diff --git a/dobutokO2.cabal b/dobutokO2.cabal
--- a/dobutokO2.cabal
+++ b/dobutokO2.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                dobutokO2
-version:             0.5.1.0
+version:             0.5.2.0
 synopsis:            A program and a library to create experimental music from a mono audio and a Ukrainian text
 description:         It can also create a timbre for the notes
 homepage:            https://hackage.haskell.org/package/dobutokO2