diff --git a/alpine/packages/docker/etc/init.d/docker b/alpine/packages/docker/etc/init.d/docker
index 9cfe8c8fe..c284dcc8e 100755
--- a/alpine/packages/docker/etc/init.d/docker
+++ b/alpine/packages/docker/etc/init.d/docker
@@ -42,7 +42,7 @@ start()
 		export no_proxy="$(mobyconfig get proxy/exclude)"
 	fi
 
-	grep -q "osxfs /tmp" /etc/mtab || ( [ -d /Mac/tmp ] && mount --bind /Mac/tmp /tmp )
+	grep -q "osxfs /tmp" /proc/mounts || ( [ -d /Mac/tmp ] && mount --bind /Mac/tmp /tmp )
 
 	for d in Users Volumes private
 	do