diff --git a/docs.it4i/environment-and-modules.md b/docs.it4i/environment-and-modules.md
index 0c8c2a0565611baee6e18ea2c90308908d9b5eb9..fafcadce37921483cac3b2bc1f216fc5ae91c40b 100644
--- a/docs.it4i/environment-and-modules.md
+++ b/docs.it4i/environment-and-modules.md
@@ -1,5 +1,17 @@
 # Environment and Modules
 
+## Shells on Clusters
+
+The table shows which shells are supported on IT4Innovations clusters.
+
+| Cluster Name    | bash | tcsh | zsh | ksh |
+| --------------- | ---- | ---- | --- | --- |
+| Anselm Cluster  | yes  | yes  | yes | yes |
+| Salomon Cluster | yes  | yes  | yes | yes |
+
+!!! info
+    BASH is the default shell. Should you need a different shell write an email to support@it4i.cz.
+
 ## Environment Customization
 
 After logging in, you may want to configure the environment. Write your preferred path definitions, aliases, functions and module loads in the .bashrc file