diff --git a/README.md b/README.md
index d0ce03c6..c023f905 100644
--- a/README.md
+++ b/README.md
@@ -181,6 +181,8 @@ This can be amended by setting the environment variable manually before attempti
 export TZ='Europe/Ljubljana'
 ```
 
+Note: if this is needed to avoid runtime issues, you need to either define this environment variable in each new terminal window or (better) define it in your `~/.bashrc` or `~/.bash_profile`.
+
 ## Possible runtime issues
 ### Unix end of line characters