diff --git a/README.md b/README.md
index 0d2e5b3..00fea6a 100644
--- a/README.md
+++ b/README.md
@@ -26,9 +26,12 @@ If the current line is empty, it will do the same thing to the most recent histo
 
 The default binding sequence can be overriden by setting `sudope_sequence` to the desired sequence.
 
-For example, to set the sequence to <kbd>Alt</kbd>+<kbd>u</kbd> you can add:
+The default super user command "sudo" can be overriden by setting `sudope_command` to the desired command.
+
+For example, to set the sequence to <kbd>Alt</kbd>+<kbd>u</kbd> and the super user command to "doas" you can add:
 ```fish
 set -gx sudope_sequence \eu
+set -gx sudope_command 'doas'
 ```
 To `~/.config/omf/init.fish`.
 
diff --git a/functions/sudope.fish b/functions/sudope.fish
index a15e5a3..d698cec 100644
--- a/functions/sudope.fish
+++ b/functions/sudope.fish
@@ -1,16 +1,26 @@
-function sudope -d "Quickly toggle sudo prefix"
+function sudope -d "Quickly toggle super user command prefix"
 
   # Save the current command line and cursor position.
   set -l command_buffer (commandline)
   set -l cursor_position (commandline -C)
 
+  # If no custom super user command defaults to sudo
+  test -n "$sudope_command"
+    or set -l sudope_command 'sudo'
+
+  # Save regex escaped version of super user command for later
+  set -l sudope_command_re (string escape --style=regex "$sudope_command")
+
+  # Save su command length
+  set -l sudope_command_length (string length -- "$sudope_command")
+
   # If the command line is empty, pull the last command from history.
   if test -z "$command_buffer"
     set command_buffer $history[1]
   end
 
   # Parse the command line (first line only).
-  set -l command_parts (string match -ir '^(\s*)(sudo(\s+|$))?(.*)' $command_buffer[1])
+  set -l command_parts (string match -ir "^(\s*)($sudope_command_re(\s+|\$))?(.*)" $command_buffer[1])
 
   # Handle multiline commands with extra care.
   set -l command_lines_count (count $command_buffer)
@@ -19,32 +29,32 @@ function sudope -d "Quickly toggle sudo prefix"
 
   switch (count $command_parts)
     case 3
-      # No "sudo".
+      # No su command.
 
-      # Add "sudo" to the beginning of the command, after any leading whitespace (if present).
-      commandline -r (string join \n (string join '' $command_parts[2] 'sudo ' $command_parts[3]) $command_rest)
+      # Add the su command to the beginning of the command, after any leading whitespace (if present).
+      commandline -r (string join \n (string join '' $command_parts[2] "$sudope_command " $command_parts[3]) $command_rest)
 
-      # Push the cursor position ahead if necessary (+5 for 'sudo ').
+      # Push the cursor position ahead if necessary
       test $cursor_position -ge (string length -- "$command_parts[2]")
-        and set cursor_position (math $cursor_position+5)
+        and set cursor_position (math $cursor_position+$sudope_command_length+1)
 
       # Place the cursor where it was (or where it should be).
       commandline -C $cursor_position
 
     case 5
-      # "sudo" is present in the beginning of the command.
+      # The su comamnd is present in the beginning of the command.
 
-      # Remove "sudo", leave any leading whitespace (if present).
+      # Remove the su command, leave any leading whitespace (if present).
       commandline -r (string join \n (string join '' $command_parts[2 5]) $command_rest)
 
-      # Push the cursor position back if appropriate ('sudo' and whitespace).
+      # Push the cursor position back if appropriate (su command and whitespace).
       set -l lead_length (string length -- "$command_parts[2]")
-      set -l sudo_length (string length -- "$command_parts[3]")
-      if test $cursor_position -ge (math $lead_length+$sudo_length)
-        # The cursor was after "sudo".
-        set cursor_position (math $cursor_position-$sudo_length)
+      set -l sudope_command_length (string length -- "$command_parts[3]")
+      if test $cursor_position -ge (math $lead_length+$sudope_command_length)
+        # The cursor was after the su command.
+        set cursor_position (math $cursor_position-$sudope_command_length)
       else if test $cursor_position -ge $lead_length
-        # The cursor was somewhere on "sudo".
+        # The cursor was somewhere on the su command.
         set cursor_position $lead_length
       end