diff --git a/src/main/java/org/asamk/signal/json/JsonMessageEnvelope.java b/src/main/java/org/asamk/signal/json/JsonMessageEnvelope.java
index d58f3843..9e4167d5 100644
--- a/src/main/java/org/asamk/signal/json/JsonMessageEnvelope.java
+++ b/src/main/java/org/asamk/signal/json/JsonMessageEnvelope.java
@@ -7,6 +7,7 @@ import org.asamk.Signal;
 import org.asamk.signal.manager.Manager;
 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
+import org.whispersystems.signalservice.api.util.InvalidNumberException;
 
 import java.util.List;
 
@@ -17,6 +18,9 @@ public class JsonMessageEnvelope {
     @JsonProperty
     final String source;
 
+    @JsonProperty
+    final String sourceName;
+
     @JsonProperty
     final Integer sourceDevice;
 
@@ -27,6 +31,7 @@ public class JsonMessageEnvelope {
     @JsonProperty
     final long timestamp;
 
+
     @JsonProperty
     @JsonInclude(JsonInclude.Include.NON_NULL)
     final JsonDataMessage dataMessage;
@@ -62,6 +67,13 @@ public class JsonMessageEnvelope {
             this.sourceDevice = null;
             this.relay = null;
         }
+        if (this.source != null) {
+            try {
+                this.sourceName =  m.getContactOrProfileName(this.source);
+            } catch (InvalidNumberException e) {}
+        } else {
+            this.sourceName = null;
+        }
         this.timestamp = envelope.getTimestamp();
         if (envelope.isReceipt()) {
             this.receiptMessage = JsonReceiptMessage.deliveryReceipt(timestamp, List.of(timestamp));
@@ -87,6 +99,7 @@ public class JsonMessageEnvelope {
 
     public JsonMessageEnvelope(Signal.MessageReceived messageReceived) {
         source = messageReceived.getSender();
+        sourceName = null;
         sourceDevice = null;
         relay = null;
         timestamp = messageReceived.getTimestamp();
@@ -99,6 +112,7 @@ public class JsonMessageEnvelope {
 
     public JsonMessageEnvelope(Signal.ReceiptReceived receiptReceived) {
         source = receiptReceived.getSender();
+        sourceName = null;
         sourceDevice = null;
         relay = null;
         timestamp = receiptReceived.getTimestamp();
@@ -111,6 +125,7 @@ public class JsonMessageEnvelope {
 
     public JsonMessageEnvelope(Signal.SyncMessageReceived messageReceived) {
         source = messageReceived.getSource();
+        sourceName = null;
         sourceDevice = null;
         relay = null;
         timestamp = messageReceived.getTimestamp();