diff --git a/themes/powerline-multiline/README.md b/themes/powerline-multiline/README.md
index 965c593a..49ccb9f6 100644
--- a/themes/powerline-multiline/README.md
+++ b/themes/powerline-multiline/README.md
@@ -9,6 +9,7 @@ A colorful multiline theme, where the first line shows information about your sh
 * Current path
 * Current username and hostname
 * Current time
+* Current shell level
 * An indicator when connected by SSH
 * An indicator when `sudo` has the credentials cached (see the `sudo` manpage for more info about this)
 * An indicator when the current shell is inside the Vim editor
@@ -61,6 +62,7 @@ The contents of both prompt sides can be "reordered", all the "segments" (every
 * `user_info` - Current user
 * `wd` - Working directory, like `cwd` but doesn't show the full folder
   hierarchy, only the directory you're currently in.
+* `shlvl` - Show the current shell level (based on `SHLVL` environment variable), but only if you are not in root shell
 
 Two variables can be defined to set the order of the prompt segments:
 
diff --git a/themes/powerline-naked/README.md b/themes/powerline-naked/README.md
index 1f16c296..60bf722f 100644
--- a/themes/powerline-naked/README.md
+++ b/themes/powerline-naked/README.md
@@ -9,6 +9,7 @@ A colorful theme, where shows a lot information about your shell session.
 * Current path
 * Current username and hostname
 * Current time
+* Current shell level
 * An indicator when connected by SSH
 * An indicator when `sudo` has the credentials cached (see the `sudo` manpage for more info about this)
 * An indicator when the current shell is inside the Vim editor
@@ -59,6 +60,7 @@ The contents of the prompt can be "reordered", all the "segments" (every piece o
 * `user_info` - Current user
 * `wd` - Working directory, like `cwd` but doesn't show the full folder
   hierarchy, only the directory you're currently in.
+* `shlvl` - Show the current shell level (based on `SHLVL` environment variable), but only if you are not in root shell
 
 A variable can be defined to set the order of the prompt segments:
 
diff --git a/themes/powerline-plain/README.md b/themes/powerline-plain/README.md
index 6ea21a18..924eb2ac 100644
--- a/themes/powerline-plain/README.md
+++ b/themes/powerline-plain/README.md
@@ -7,6 +7,7 @@ A colorful theme, where shows a lot information about your shell session.
 * Current path
 * Current username and hostname
 * Current time
+* Current shell level
 * An indicator when connected by SSH
 * An indicator when `sudo` has the credentials cached (see the `sudo` manpage for more info about this)
 * An indicator when the current shell is inside the Vim editor
@@ -57,6 +58,7 @@ The contents of the prompt can be "reordered", all the "segments" (every piece o
 * `user_info` - Current user
 * `wd` - Working directory, like `cwd` but doesn't show the full folder
   hierarchy, only the directory you're currently in.
+* `shlvl` - Show the current shell level (based on `SHLVL` environment variable), but only if you are not in root shell
 
 A variable can be defined to set the order of the prompt segments:
 
diff --git a/themes/powerline/README.md b/themes/powerline/README.md
index acb51d9f..55efa655 100644
--- a/themes/powerline/README.md
+++ b/themes/powerline/README.md
@@ -11,6 +11,7 @@ A colorful theme, where shows a lot information about your shell session.
 * Current path
 * Current username and hostname
 * Current time
+* Current shell level
 * An indicator when connected by SSH
 * An indicator when `sudo` has the credentials cached (see the `sudo` manpage for more info about this)
 * An indicator when the current shell is inside the Vim editor
@@ -61,6 +62,7 @@ The contents of the prompt can be "reordered", all the "segments" (every piece o
 * `user_info` - Current user
 * `wd` - Working directory, like `cwd` but doesn't show the full folder
   hierarchy, only the directory you're currently in.
+* `shlvl` - Show the current shell level (based on `SHLVL` environment variable), but only if you are not in root shell
 
 A variable can be defined to set the order of the prompt segments: