diff --git a/docs/4-statefulsets.md b/docs/4-statefulsets.md
index 8634799..39ad8b1 100644
--- a/docs/4-statefulsets.md
+++ b/docs/4-statefulsets.md
@@ -2,7 +2,7 @@
 
 Running StatefulSet with with local persistent volumes for bare-metal Kubernetes 1.9 clusters.
 
-![StatefulSets](diagrams/statefulset.png)
+![StatefulSets](diagrams/statefulsets.png)
 
 ### Cluster provisioning
 
diff --git a/docs/diagrams/statefulset.png b/docs/diagrams/statefulsets.png
similarity index 100%
rename from docs/diagrams/statefulset.png
rename to docs/diagrams/statefulsets.png