diff --git a/completion/bash/task.bash b/completion/bash/task.bash
index 84e8f55e..feaaca4d 100644
--- a/completion/bash/task.bash
+++ b/completion/bash/task.bash
@@ -1,48 +1,48 @@
-# vim: set tabstop=4 shiftwidth=4 expandtab:
+# vim: set tabstop=2 shiftwidth=2 expandtab:
 
 _GO_TASK_COMPLETION_LIST_OPTION='--list-all'
 
 function _task()
 {
-    local cur prev words cword
-    _init_completion -n : || return
+  local cur prev words cword
+  _init_completion -n : || return
 
-    # Handle special arguments of options.
-    case "$prev" in
-        -d|--dir)
-            _filedir -d
-            return $?
-        ;;
-        -t|--taskfile)
-            _filedir yaml
-            _filedir yml
-            return $?
-        ;;
-        -o|--output)
-            COMPREPLY=( $( compgen -W "interleaved group prefixed" -- $cur ) )
-            return 0
-        ;;
-    esac
+  # Handle special arguments of options.
+  case "$prev" in
+    -d|--dir)
+      _filedir -d
+      return $?
+    ;;
+    -t|--taskfile)
+      _filedir yaml || return $?
+      _filedir yml
+      return $?
+    ;;
+    -o|--output)
+      COMPREPLY=( $( compgen -W "interleaved group prefixed" -- $cur ) )
+      return 0
+    ;;
+  esac
 
-    # Handle normal options.
-    case "$cur" in
-        -*)
-            COMPREPLY=( $( compgen -W "$(_parse_help $1)" -- $cur ) )
-            return 0
-        ;;
-    esac
+  # Handle normal options.
+  case "$cur" in
+    -*)
+      COMPREPLY=( $( compgen -W "$(_parse_help $1)" -- $cur ) )
+      return 0
+    ;;
+  esac
 
-    # Get task names.
-    local line tasks=()
-    while read line; do
-        if [[ "${line}" =~ ^\*[[:space:]]+([[:alnum:]_:]+): ]]; then
-            tasks+=( ${BASH_REMATCH[1]} )
-        fi
-    done < <("${COMP_WORDS[@]}" $_GO_TASK_COMPLETION_LIST_OPTION 2> /dev/null)
+  # Get task names.
+  local line tasks=()
+  while read line; do
+    if [[ "${line}" =~ ^\*[[:space:]]+([[:alnum:]_:]+): ]]; then
+      tasks+=( ${BASH_REMATCH[1]} )
+    fi
+  done < <("${COMP_WORDS[@]}" $_GO_TASK_COMPLETION_LIST_OPTION 2> /dev/null)
 
-    # Prepare task completions and post-process due to colons.
-    COMPREPLY=( $( compgen -W "${tasks[*]}" -- "$cur" ) )
-    __ltrim_colon_completions "$cur"
+  # Prepare task completions and post-process due to colons.
+  COMPREPLY=( $( compgen -W "${tasks[*]}" -- "$cur" ) )
+  __ltrim_colon_completions "$cur"
 }
 
 complete -F _task task