1 files changed, 4 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/StringProtocolEncoder.java b/src/main/java/org/traccar/StringProtocolEncoder.java
index 1945ae174..afe2381d0 100644
--- a/src/main/java/org/traccar/StringProtocolEncoder.java
+++ b/src/main/java/org/traccar/StringProtocolEncoder.java
@@ -21,6 +21,10 @@ import java.util.Map;
 
 public abstract class StringProtocolEncoder extends BaseProtocolEncoder {
 
+    public StringProtocolEncoder(Protocol protocol) {
+        super(protocol);
+    }
+
     public interface ValueFormatter {
         String formatValue(String key, Object value);
     }