diff --git a/README.md b/README.md
index 46d8ab61..a04b4eea 100644
--- a/README.md
+++ b/README.md
@@ -511,6 +511,10 @@ It figures out the version being used by taking the output of the `rbenv version
 * If `rbenv` is not in $PATH, nothing will be shown.
 * If the current Ruby version is the same as the global Ruby version, nothing will be shown.
 
+| Variable | Default Value | Description |
+|----------|---------------|-------------|
+|`POWERLEVEL9K_RBENV_PROMPT_ALWAYS_SHOW`|`false`|Set to true if you wish to show the rbenv segment even if the current Ruby version is the same as the global Ruby version|
+
 ##### rspec_stats
 
 See [Unit Test Ratios](#unit-test-ratios), below.