diff --git a/server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/model/WebConnectionInfo.java b/server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/model/WebConnectionInfo.java
index 3eef9a23ac..07bd96fca1 100644
--- a/server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/model/WebConnectionInfo.java
+++ b/server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/model/WebConnectionInfo.java
@@ -165,7 +165,8 @@ public class WebConnectionInfo {
 
     @Property
     public String getConnectTime() {
-        return CBConstants.ISO_DATE_FORMAT.format(dataSourceContainer.getConnectTime());
+        return dataSourceContainer.getConnectTime() == null ? null :
+            CBConstants.ISO_DATE_FORMAT.format(dataSourceContainer.getConnectTime());
     }
 
     @Property