diff --git a/examples/tutorial/dockerfiles/slurm-cluster/reframe/Dockerfile b/examples/tutorial/dockerfiles/slurm-cluster/reframe/Dockerfile
index d563235ed4..b152b50cd4 100644
--- a/examples/tutorial/dockerfiles/slurm-cluster/reframe/Dockerfile
+++ b/examples/tutorial/dockerfiles/slurm-cluster/reframe/Dockerfile
@@ -35,8 +35,9 @@ RUN chmod +rx /etc/slurm-llnl/docker-entrypoint.sh
 
 # Install reframe
 ARG REFRAME_TAG=develop
+ARG REFRAME_REPO=reframe-hpc
 WORKDIR /usr/local/share
-RUN git clone --depth 1 --branch $REFRAME_TAG https://github.com/reframe-hpc/reframe.git && \
+RUN git clone --depth 1 --branch $REFRAME_TAG https://github.com/$REFRAME_REPO/reframe.git && \
     cd reframe/ && ./bootstrap.sh
 ENV PATH=/usr/local/share/reframe/bin:$PATH
 
diff --git a/reframe/core/schedulers/slurm.py b/reframe/core/schedulers/slurm.py
index 550f0d3a8a..0da2807937 100644
--- a/reframe/core/schedulers/slurm.py
+++ b/reframe/core/schedulers/slurm.py
@@ -621,6 +621,9 @@ def poll(self, *jobs):
 
             # Join the states with ',' in case of job arrays
             job._state = ','.join(s.group('state') for s in job_match)
+
+            # Use ',' to join nodes to be consistent with Slurm syntax
+            job._nodespec = ','.join(m.group('nodespec') for m in job_match)
             self._cancel_if_blocked(
                 job, [s.group('reason') for s in state_match]
             )