diff -Nura e2/src/tcl.c e1/src/tcl.c
--- e2/src/tcl.c	2011-09-10 01:37:53.000000000 +0400
+++ e1/src/tcl.c	2016-10-08 01:25:00.830082096 +0300
@@ -863,7 +863,7 @@
   }
 
   if (encoding == NULL) {
-    encoding = "iso8859-1";
+    encoding = "utf-8";
   }
 
   Tcl_SetSystemEncoding(NULL, encoding);