diff --git a/roles/docker-matrix/tasks/main.yml b/roles/docker-matrix/tasks/main.yml
index afa20552..e4e5d57d 100644
--- a/roles/docker-matrix/tasks/main.yml
+++ b/roles/docker-matrix/tasks/main.yml
@@ -23,7 +23,7 @@
 # https://github.com/matrix-org/synapse/issues/6303
 - name: set correct folder permissions
   command:
-    cmd: "docker run --rm --mount type=volume,src=matrix_data,dst=/data -e SYNAPSE_SERVER_NAME={{domain}} -e SYNAPSE_REPORT_STATS=no --entrypoint /bin/sh matrixdotorg/synapse:latest -c 'chown -vR 991:991 /data'"
+    cmd: "docker run --rm --mount type=volume,src=matrix_synapse_data,dst=/data -e SYNAPSE_SERVER_NAME={{domain}} -e SYNAPSE_REPORT_STATS=no --entrypoint /bin/sh matrixdotorg/synapse:latest -c 'chown -vR 991:991 /data'"
 
 - name: add docker-compose.yml
   template: