diff --git a/deploy/prod/common-values-iris-mpc.yaml b/deploy/prod/common-values-iris-mpc.yaml
index be37df177..a0ab9da84 100644
--- a/deploy/prod/common-values-iris-mpc.yaml
+++ b/deploy/prod/common-values-iris-mpc.yaml
@@ -80,3 +80,8 @@ libsDir:
       file: "libcublasLt.so.12.2.5.6"
     - path: "/usr/local/cuda-12.2/targets/x86_64-linux/lib/libcublas.so.12.2.5.6"
       file: "libcublas.so.12.2.5.6"
+
+tmpDir:
+  enabled: true
+  size: 5Gi
+  mountPath: /dev/shm