diff --git a/Dockerfile b/Dockerfile
index 982cb09..e283e4b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,10 +26,10 @@ RUN ln -sf /usr/share/zoneinfo/Australia/Melbourne /etc/localtime
 RUN apt-get update \
     && apt-get install -yqq git build-essential autoconf2.13 libnspr4-dev libncurses5-dev libncursesw5-dev libarchive-dev wget python2.7 pkgconf libcap2-bin sudo libarchive13 libnspr4 \
     && mkdir /opt/sbbs && cd /tmp \
-    && wget https://gitlab.synchro.net/sbbs/sbbs/-/raw/master/install/GNUmakefile \
+    && wget https://gitlab.synchro.net/sbbs/sbbs/-/raw/master/install/install-sbbs.mk \
     && git clone https://gitlab.com/SynchronetBBS/sbbs.git /opt/sbbs/repo \
     && cd /tmp \
-    && make RELEASE=1 NO_X=1 SBBSDIR=/opt/sbbs install \
+    && make -f install-sbbs.mk RELEASE=1 NO_X=1 SBBSDIR=/opt/sbbs \
     && rm -rf /opt/sbbs/3rdp /opt/sbbs/src \
     && mv /opt/sbbs/ctrl /opt/sbbs/ctrl.orig \
     && mv /opt/sbbs/text /opt/sbbs/text.orig \