diff --git a/org/ystia/kibana/linux/bash/types.yml b/org/ystia/kibana/linux/bash/types.yml
index fac9fe73..8fe17aff 100644
--- a/org/ystia/kibana/linux/bash/types.yml
+++ b/org/ystia/kibana/linux/bash/types.yml
@@ -11,7 +11,7 @@ metadata:
   template_version: 2.2.0-SNAPSHOT
   template_author: Ystia
 
-description:
+description: ''
 
 imports:
   - tosca-normative-types:1.0.0-ALIEN20
diff --git a/org/ystia/kubernetes/linux/ansible/types.yml b/org/ystia/kubernetes/linux/ansible/types.yml
index ff924669..d12328c8 100644
--- a/org/ystia/kubernetes/linux/ansible/types.yml
+++ b/org/ystia/kubernetes/linux/ansible/types.yml
@@ -213,7 +213,7 @@ node_types:
     derived_from: org.ystia.kubernetes.pub.nodes.KubernetesApp
     tags:
       icon: /images/kubernetes-app-icon.png
-    properties:
+#    properties:
     interfaces:
       Standard:
         inputs:
diff --git a/org/ystia/logstash/linux/bash/types.yml b/org/ystia/logstash/linux/bash/types.yml
index 858b8537..3935b29b 100644
--- a/org/ystia/logstash/linux/bash/types.yml
+++ b/org/ystia/logstash/linux/bash/types.yml
@@ -11,7 +11,7 @@ metadata:
   template_version: 2.2.0-SNAPSHOT
   template_author: Ystia
 
-description:
+description: ''
 
 imports:
   - tosca-normative-types:1.0.0-ALIEN20
diff --git a/org/ystia/tests/topologies/elk_kafka/types.yml b/org/ystia/tests/topologies/elk_kafka/types.yml
index 047aae87..eae1ae0d 100644
--- a/org/ystia/tests/topologies/elk_kafka/types.yml
+++ b/org/ystia/tests/topologies/elk_kafka/types.yml
@@ -57,7 +57,7 @@ topology_template:
             node: Compute
     Kafka:
       type: org.ystia.kafka.linux.bash.nodes.Kafka
-      properties:
+      # properties:
       requirements:
         - host:
             node: Java
diff --git a/org/ystia/topologies/rstudio/types.yml b/org/ystia/topologies/rstudio/types.yml
index b23f3c0e..6998e50b 100644
--- a/org/ystia/topologies/rstudio/types.yml
+++ b/org/ystia/topologies/rstudio/types.yml
@@ -70,7 +70,7 @@ topology_template:
             node: BlockStorage
     RStudio:
       type: org.ystia.rstudio.linux.bash.nodes.RStudio
-      properties:
+#      properties:
       requirements:
         - host:
             node: Java