diff --git a/src/unix/vpkEnv.Mod b/src/unix/vpkEnv.Mod
index 35a77b5..9bb75c2 100644
--- a/src/unix/vpkEnv.Mod
+++ b/src/unix/vpkEnv.Mod
@@ -49,7 +49,7 @@ END getSrcRelPath;
 
 PROCEDURE mkConfDirPath(home: ARRAY OF CHAR; VAR path: ARRAY OF CHAR);
 BEGIN
-  confDir := home;
+  COPY(home, confDir);
   Strings.Append("/", path);
   Strings.Append(vpkSettings.vpkConfDir, path);
 END mkConfDirPath;