From ca8272b477724aa97450f2f9bf600d70023d9e51 Mon Sep 17 00:00:00 2001
From: Paulo Castro <paulo@balena.io>
Date: Fri, 6 Mar 2020 01:48:13 +0000
Subject: [PATCH] Fix `build --emulated` on Linux ("exec format error")

Resolves: #1649
Change-type: patch
---
 lib/utils/compose.coffee | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/utils/compose.coffee b/lib/utils/compose.coffee
index d4a851b3..98a3ebac 100644
--- a/lib/utils/compose.coffee
+++ b/lib/utils/compose.coffee
@@ -230,7 +230,7 @@ exports.buildProject = (
 					containerQemuPath: "/tmp/#{qemu.QEMU_BIN_NAME}",
 					qemuFileMode: 0o555,
 				},
-				dockerfilePath
+				dockerfilePath or undefined,
 			).then (stream) ->
 				task.buildStream = stream
 			.return([ task, binPath ])