diff --git a/drongo b/drongo
index 9b117cd7..a5668424 160000
--- a/drongo
+++ b/drongo
@@ -1 +1 @@
-Subproject commit 9b117cd7f90caba5e280034dee5865a1a42d82c1
+Subproject commit a56684240a1a9a44f96b2a57fd10799bb9f8a18a
diff --git a/src/main/java/com/sparrowwallet/sparrow/control/TransactionHexArea.java b/src/main/java/com/sparrowwallet/sparrow/control/TransactionHexArea.java
index ec661bc3..62c255de 100644
--- a/src/main/java/com/sparrowwallet/sparrow/control/TransactionHexArea.java
+++ b/src/main/java/com/sparrowwallet/sparrow/control/TransactionHexArea.java
@@ -68,7 +68,7 @@ public class TransactionHexArea extends CodeArea {
         //Version
         cursor = addSegment(segments, cursor, 8, "version");
 
-        if(transaction.hasWitnesses()) {
+        if(transaction.isSegwit()) {
             //Segwit marker
             cursor = addSegment(segments, cursor, 2, "segwit-marker");
             //Segwit flag
@@ -123,7 +123,7 @@ public class TransactionHexArea extends CodeArea {
         cursor = addSegment(segments, cursor, 8, "locktime");
 
         if(cursor != getLength()) {
-            //throw new IllegalStateException("Cursor position does not match transaction serialisation " + cursor + ": " + getLength());
+            throw new IllegalStateException("Cursor position does not match transaction serialisation " + cursor + ": " + getLength());
         }
 
         return segments;