diff --git a/Operator/src/main/java/io/streamzi/ev/operator/DeploymentConfigOperator.java b/Operator/src/main/java/io/streamzi/ev/operator/DeploymentConfigOperator.java
index b08004e..6962cc2 100644
--- a/Operator/src/main/java/io/streamzi/ev/operator/DeploymentConfigOperator.java
+++ b/Operator/src/main/java/io/streamzi/ev/operator/DeploymentConfigOperator.java
@@ -58,7 +58,10 @@ private void deploymentConfigAdded(DeploymentConfig dc) {
 
                 for (String key : cm.getData().keySet()) {
 
-                    final EnvVar ev = new EnvVar(Util.sanitiseEnvVar(key), cm.getData().get(key), null);
+                    String evValue = cm.getData().get(key);
+                    if(evValue.equals("")) evValue = null;
+
+                    final EnvVar ev = new EnvVar(Util.sanitiseEnvVar(key), evValue, null);
 
                     final List<Container> containers = dc.getSpec().getTemplate().getSpec().getContainers();
 
diff --git a/Operator/src/main/java/io/streamzi/ev/watcher/DeploymentConfigWatcher.java b/Operator/src/main/java/io/streamzi/ev/watcher/DeploymentConfigWatcher.java
index d682d60..54fe6bf 100644
--- a/Operator/src/main/java/io/streamzi/ev/watcher/DeploymentConfigWatcher.java
+++ b/Operator/src/main/java/io/streamzi/ev/watcher/DeploymentConfigWatcher.java
@@ -35,7 +35,7 @@ public void eventReceived(Action action, DeploymentConfig dc) {
 
         final Map<String, String> labels = dc.getMetadata().getLabels();
         final String name = dc.getMetadata().getName();
-        logger.info("DeploymentConfig watch received event " + action + " on map " + name + " with labels" + labels);
+        logger.info("DeploymentConfig watch received event " + action + " on deploymentconfig " + name + " with labels" + labels);
 
         try {
             switch (action) {
diff --git a/Operator/src/main/java/io/streamzi/ev/watcher/DeploymentWatcher.java b/Operator/src/main/java/io/streamzi/ev/watcher/DeploymentWatcher.java
index d51ad84..e58e1e2 100644
--- a/Operator/src/main/java/io/streamzi/ev/watcher/DeploymentWatcher.java
+++ b/Operator/src/main/java/io/streamzi/ev/watcher/DeploymentWatcher.java
@@ -36,7 +36,7 @@ public void eventReceived(Action action, Deployment dc) {
 
         final Map<String, String> labels = dc.getMetadata().getLabels();
         final String name = dc.getMetadata().getName();
-        logger.info("Deployment watch received event " + action + " on map " + name + " with labels" + labels);
+        logger.info("Deployment watch received event " + action + " on deployment " + name + " with labels" + labels);
 
         try {
             switch (action) {