diff --git a/charts/humhub/values.yaml b/charts/humhub/values.yaml
index 4552b90..a8c3ab4 100644
--- a/charts/humhub/values.yaml
+++ b/charts/humhub/values.yaml
@@ -28,7 +28,7 @@ php:
     postMaxSize: 32m
     uploadMaxFilesize: 32m
     maxExecutionTime: "60"
-    memoryLimit: 256m
+    memoryLimit: 256M
 
 nginx:
     clientMaxBodySize: "32m"