diff --git a/products/pdt/cd/base/deployment.yaml b/products/pdt/cd/base/deployment.yaml
index 19e25bfab..279af15c1 100644
--- a/products/pdt/cd/base/deployment.yaml
+++ b/products/pdt/cd/base/deployment.yaml
@@ -85,6 +85,11 @@ spec:
                 configMapKeyRef:
                   name: pdt
                   key: NETWORK_TYPE_MAINNET
+            - name: BUFFER_SIZE
+              valueFrom:
+                configMapKeyRef:
+                  name: pdt
+                  key: BUFFER_SIZE
           command: ["/bin/bash", "-c"]
           args:
             - ./pdt --network-type $NETWORK_TYPE bqlisten --project-id $PROJECT_ID --dataset-id $DATASET_ID --buffer-size $BUFFER_SIZE