diff --git a/Makefile b/Makefile
index 70f65a2..7bbbb75 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,4 @@
+SHELL = /bin/bash
 PREFIX ?= /usr/local
 BUILD_DIR ?= build
 KEYRING_TARGET_DIR ?= $(PREFIX)/share/pacman/keyrings/