diff --git a/jit/emc-qc-post-calib-remote b/jit/emc-qc-post-calib-remote
index 1885dd5d6..f49e89d1c 100644
--- a/jit/emc-qc-post-calib-remote
+++ b/jit/emc-qc-post-calib-remote
@@ -1 +1 @@
-o2-qc --config consul-json://{{ consul_endpoint }}/o2/components/qc/ANY/any/{{ qc_json_file }} --remote -b
+o2-qc --config consul-json://{{ consul_endpoint }}/o2/components/qc/ANY/any/{{ qc_json_file }} --remote -b --shm-metadata-msg-size {{ qc_shm_metadata_msg_size }}
diff --git a/workflows/readout-dataflow.yaml b/workflows/readout-dataflow.yaml
index 379a4f0fd..ed22fff40 100755
--- a/workflows/readout-dataflow.yaml
+++ b/workflows/readout-dataflow.yaml
@@ -1713,6 +1713,7 @@ roles:
       qc_remote_workflow: none
       qc_remote_machine: none
       qc_shm_segment_size: 10000000000
+      qc_shm_metadata_msg_size: 100000
     vars:
       user: qc
       session_id: "{{ environment_id }}" # we can't use "default" because other workflows might already exist on the same QC server