--- a/7kaa/src/OSYS.cpp	2020-10-09 21:04:48.099663838 +0700
+++ b/7kaa/src/OSYS.cpp	2020-10-09 21:06:49.111299505 +0700
@@ -2777,6 +2777,8 @@
 
    // test environment variable SKDATA for the path
    env_data_path = getenv("SKDATA");
+   if (!env_data_path)
+      env_data_path = "/usr/share/7kaa";
    if (env_data_path)
    {
       chdir(env_data_path);