diff --git a/Makefile b/Makefile
index 02ba9cc..a83cf3e 100644
--- a/Makefile
+++ b/Makefile
@@ -194,7 +194,7 @@ test-iso:
 	sudo apt-get install -y squashfs-tools
 	sudo modprobe loop
 	sudo mkdir /mnt/{iso,install}
-	sudo mount -o loop $iso /mnt/iso
+	sudo mount -o loop deploy.iso /mnt/iso
 	sudo mount -t squashfs -o loop /mnt/iso/images/install.img /mnt/install
 
 	$(foreach test,$(_TESTS),chmod +x tests/iso/$(test))