diff --git a/ttnhabbridge/src/main/java/nl/sikken/bertrik/TtnHabBridge.java b/ttnhabbridge/src/main/java/nl/sikken/bertrik/TtnHabBridge.java
index 069c0a8..e9b23bd 100644
--- a/ttnhabbridge/src/main/java/nl/sikken/bertrik/TtnHabBridge.java
+++ b/ttnhabbridge/src/main/java/nl/sikken/bertrik/TtnHabBridge.java
@@ -97,13 +97,6 @@ public final class TtnHabBridge {
     private void handleTTNMessage(LoraWanUplinkMessage message) {
         Instant now = Instant.now();
         try {
-            // decode from JSON
-            if (message.isRetry()) {
-                // skip "retry" messages, they contain duplicate data with a misleading time
-                // stamp
-                LOG.warn("Ignoring 'retry' message");
-                return;
-            }
             Sentence sentence = decoder.decode(message);
             String line = sentence.format();
 
diff --git a/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/lorawan/LoraWanUplinkMessage.java b/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/lorawan/LoraWanUplinkMessage.java
index 1e6d585..d184c02 100644
--- a/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/lorawan/LoraWanUplinkMessage.java
+++ b/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/lorawan/LoraWanUplinkMessage.java
@@ -22,18 +22,15 @@ public final class LoraWanUplinkMessage {
     private final int port;
     private final Map<String, Object> payloadFields = new HashMap<>();
     private final byte[] payloadRaw;
-    private final boolean isRetry;
     private final List<GatewayInfo> gateways = new ArrayList<>();
 
-    public LoraWanUplinkMessage(Instant time, String appId, String deviceId, int counter, int port, byte[] payloadRaw,
-            boolean isRetry) {
+    public LoraWanUplinkMessage(Instant time, String appId, String deviceId, int counter, int port, byte[] payloadRaw) {
         this.time = Instant.from(time);
         this.appId = appId;
         this.deviceId = deviceId;
         this.counter = counter;
         this.port = port;
         this.payloadRaw = payloadRaw.clone();
-        this.isRetry = isRetry;
     }
 
     public void addField(String name, Object value) {
@@ -64,10 +61,6 @@ public final class LoraWanUplinkMessage {
         return new HashMap<>(payloadFields);
     }
 
-    public boolean isRetry() {
-        return isRetry;
-    }
-
     public int getPort() {
         return port;
     }
diff --git a/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/lorawan/Ttnv3UplinkMessage.java b/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/lorawan/Ttnv3UplinkMessage.java
index 9aacc6a..c9c917a 100644
--- a/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/lorawan/Ttnv3UplinkMessage.java
+++ b/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/lorawan/Ttnv3UplinkMessage.java
@@ -89,7 +89,7 @@ public final class Ttnv3UplinkMessage {
     public LoraWanUplinkMessage toUplinkMessage() {
         LoraWanUplinkMessage uplink = new LoraWanUplinkMessage(Instant.parse(receivedAt),
                 endDeviceIds.applicationIds.applicationId, endDeviceIds.deviceId, uplinkMessage.fcnt,
-                uplinkMessage.fport, uplinkMessage.payload, false);
+                uplinkMessage.fport, uplinkMessage.payload);
         for (RxMetadata metadata : uplinkMessage.rxMetadata) {
             String id = metadata.gatewayIds.gatewayId.trim();
             if (id.isEmpty()) {
diff --git a/ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/PayloadDecoderTest.java b/ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/PayloadDecoderTest.java
index 6d9af78..8d9c1e9 100644
--- a/ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/PayloadDecoderTest.java
+++ b/ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/PayloadDecoderTest.java
@@ -30,7 +30,7 @@ public final class PayloadDecoderTest {
     @Test
     public void testCayenne2() throws DecodeException {
         LoraWanUplinkMessage message = new LoraWanUplinkMessage(Instant.parse("2020-02-05T22:00:58.930936Z"), "test", "test",
-                123, 1, Base64.getDecoder().decode("AYgH1ecAzV4AC7gCZwArAwIBhg=="), false);
+                123, 1, Base64.getDecoder().decode("AYgH1ecAzV4AC7gCZwArAwIBhg=="));
         // decode payload
         PayloadDecoder decoder = new PayloadDecoder(EPayloadEncoding.CAYENNE);
         Sentence sentence = decoder.decode(message);
diff --git a/ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/lorawan/Ttnv3UplinkMessageTest.java b/ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/lorawan/Ttnv3UplinkMessageTest.java
index 0a6c04c..0d9c9f1 100644
--- a/ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/lorawan/Ttnv3UplinkMessageTest.java
+++ b/ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/lorawan/Ttnv3UplinkMessageTest.java
@@ -9,8 +9,6 @@ import org.junit.Test;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 
-import nl.sikken.bertrik.hab.lorawan.LoraWanUplinkMessage;
-import nl.sikken.bertrik.hab.lorawan.Ttnv3UplinkMessage;
 import nl.sikken.bertrik.hab.lorawan.LoraWanUplinkMessage.GatewayInfo;
 
 public final class Ttnv3UplinkMessageTest {