diff --git a/profile_common b/profile_common
index 88fa41a..1ee9695 100644
--- a/profile_common
+++ b/profile_common
@@ -10,9 +10,9 @@
 #
 
 export HOSTNAME="`hostname`"
-export LC_ALL=en_US.UTF-8
-export LANG=en_US.UTF-8
-export LANGUAGE=en_US.UTF-8
+export LC_ALL=pl_PL.UTF-8
+export LANG=pl_PL.UTF-8
+export LANGUAGE=pl_PL.UTF-8
 export TZ="Europe/Warsaw"
 export CLICOLOR=1
 export LSCOLORS=ExFxCxDxBxegedabagacad