diff --git a/.gitlab/docker/Dockerfile.app b/.gitlab/docker/Dockerfile.app
index 2b53f3678..2a17f17dd 100644
--- a/.gitlab/docker/Dockerfile.app
+++ b/.gitlab/docker/Dockerfile.app
@@ -12,7 +12,7 @@ RUN echo ${CXX_FLAGS}
 
 RUN mkdir -p /arbor.src/build \
   && cd /arbor.src/build \
-  && CXX=`which g++` CC=`which gcc` cmake .. \
+  && CXX=/opt/view/bin/g++ CC=/opt/view/bin/gcc cmake .. \
      -GNinja \
      -DCMAKE_INSTALL_PREFIX=/arbor.install \
      -DCMAKE_BUILD_TYPE=Release \