diff --git a/bash_completion b/bash_completion
new file mode 100644
index 0000000..b009994
--- /dev/null
+++ b/bash_completion
@@ -0,0 +1,44 @@
+# autorandr/auto-disper completion by Maciej 'macieks' Sitarz <macieks@freesco.pl>
+
+_autorandr ()
+{
+	local cur prev opts lopts prfls
+
+	COMPREPLY=()
+	cur="${COMP_WORDS[COMP_CWORD]}"
+	prev="${COMP_WORDS[COMP_CWORD-1]}"
+
+	opts="-h -c -s -l -d"
+	lopts="--help --change --save --load --default --force --fingerprint"
+	prfls="`find ~/.autorandr/* -maxdepth 1 -type d -printf '%f\n'`"
+
+	case "${cur}" in
+		--*)
+			COMPREPLY=( $( compgen -W "${lopts}" -- $cur ) )
+			return 0
+			;;
+		-*)
+			COMPREPLY=( $( compgen -W "${opts} ${lopts}" -- $cur ) )
+			return 0
+			;;
+		*)
+			if [ $COMP_CWORD -eq 1 ]; then
+				COMPREPLY=( $( compgen -W "${opts} ${lopts}" -- $cur ) )
+			fi
+			;;
+		esac
+
+	case "${prev}" in
+		-l|--load|-d|--default)
+			COMPREPLY=( $( compgen -W "${prfls}" ) )
+			return 0
+			;;
+		*)
+			;;
+	esac
+
+	return 0
+}
+complete -F _autorandr autorandr
+complete -F _autorandr auto-disper
+