diff --git a/onyxia-api/Dockerfile b/onyxia-api/Dockerfile
index aabf52fb..bbd512c6 100644
--- a/onyxia-api/Dockerfile
+++ b/onyxia-api/Dockerfile
@@ -1,4 +1,4 @@
-FROM eclipse-temurin:21.0.4_7-jre as extract
+FROM eclipse-temurin:21.0.4_7-jre AS extract
 ARG JAR_FILE=target/*.jar
 COPY ${JAR_FILE} application.jar
 RUN java -Djarmode=layertools -jar application.jar  extract
diff --git a/onyxia-api/src/main/java/fr/insee/onyxia/api/controller/api/mylab/MyLabController.java b/onyxia-api/src/main/java/fr/insee/onyxia/api/controller/api/mylab/MyLabController.java
index 7033dc44..04f7090b 100644
--- a/onyxia-api/src/main/java/fr/insee/onyxia/api/controller/api/mylab/MyLabController.java
+++ b/onyxia-api/src/main/java/fr/insee/onyxia/api/controller/api/mylab/MyLabController.java
@@ -362,12 +362,20 @@ public void eventReceived(Action action, Event event) {
 
         @Override
         public void onClose() {
-            emitter.complete();
+            try {
+                emitter.complete();
+            } catch (Exception ignored) {
+
+            }
         }
 
         @Override
         public void onClose(WatcherException e) {
-            emitter.complete();
+            try {
+                emitter.complete();
+            } catch (Exception ignored) {
+
+            }
         }
     }