diff --git a/pages/common/fish.md b/pages/common/fish.md
index 24335dcb4..5e27268e1 100644
--- a/pages/common/fish.md
+++ b/pages/common/fish.md
@@ -23,3 +23,7 @@
 - Display version information and exit:
 
 `fish --version`
+
+- Set and export environmental variables that persist across restarts:
+
+`set -Ux {{variable_name}} {{variable_value}}`