diff --git a/Makefile b/Makefile
index 7957e98..e298e15 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,7 @@ SCANNER := wayland-scanner
 PREFIX=/usr/local
 BINDIR=$(PREFIX)/bin
 MANDIR=$(PREFIX)/share/man
+BASHCOMPDIR=$(PREFIX)/share/bash-completion/completions
 
 CFLAGS+=-Wall -Werror -Wextra -Wpedantic -Wno-unused-parameter -Wconversion -Wformat-security -Wformat -Wsign-conversion -Wfloat-conversion -Wunused-result -Wno-strict-prototypes
 LIBS=-lwayland-client
@@ -25,13 +26,14 @@ install: wlopm
 	install wlopm $(DESTDIR)$(BINDIR)
 	install -d $(DESTDIR)$(MANDIR)/man1
 	install -m 644 wlopm.1 $(DESTDIR)$(MANDIR)/man1
+	install bash-completion $(DESTDIR)$(BASHCOMPDIR)/wlopm
 
 uninstall:
 	$(RM) $(DESTDIR)$(BINDIR)/wlopm
 	$(RM) $(DESTDIR)$(MANDIR)/man1/wlopm.1
+	$(RM) $(DESTDIR)$(BASHCOMPDIR)/wlopm
 
 clean:
 	$(RM) wlopm $(GEN) $(OBJ)
 
 .PHONY: clean install
-
diff --git a/bash-completion b/bash-completion
new file mode 100644
index 0000000..631ddd0
--- /dev/null
+++ b/bash-completion
@@ -0,0 +1,14 @@
+function __wlopm_completion ()
+{
+    case "${COMP_WORDS[-2]}" in
+	"--on"|"--off"|"--toggle")
+	    OPTS="$(wlopm | cut -d' ' -f1 | tr '\n' ' ')"
+	    ;;
+
+	*)
+	    OPTS="-h --help -j --json -v --version --on --off --toggle"
+	    ;;
+    esac
+    COMPREPLY=($(compgen -W "${OPTS}" -- "${COMP_WORDS[${COMP_CWORD}]}"))
+}
+complete -F __wlopm_completion wlopm