diff --git a/docs/install/kubernetes.md b/docs/install/kubernetes.md
index 993ab0c243129..1c866497a0444 100644
--- a/docs/install/kubernetes.md
+++ b/docs/install/kubernetes.md
@@ -49,7 +49,7 @@ helm install coder-db bitnami/postgresql \
     --set auth.username=coder \
     --set auth.password=coder \
     --set auth.database=coder \
-    --set persistence.size=10Gi
+    --set primary.persistence.size=10Gi
 ```
 
 The cluster-internal DB URL for the above database is: