diff --git a/bin/tmuxinator.bash b/bin/tmuxinator.bash
new file mode 100755
index 0000000..70c047d
--- /dev/null
+++ b/bin/tmuxinator.bash
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+_tmuxinator() {
+    COMPREPLY=()
+    local word="${COMP_WORDS[COMP_CWORD]}"
+
+    if [ "$COMP_CWORD" -eq 1 ]; then
+        local commands="$(compgen -W "$(tmuxinator commands)" -- "$word")"
+        local projects="$(compgen -W "$(tmuxinator completions start)" -- "$word")"
+
+        COMPREPLY=( $commands $projects )
+    else
+        local words=("${COMP_WORDS[@]}")
+        unset words[0]
+        unset words[$COMP_CWORD]
+        local completions=$(tmuxinator completions "${words[@]}")
+        COMPREPLY=( $(compgen -W "$completions" -- "$word") )
+    fi
+}
+
+complete -F _tmuxinator tmuxinator mux