diff --git a/src/main/java/com/teragrep/jla_01/IRelpAppenderConfig.java b/src/main/java/com/teragrep/jla_01/IRelpAppenderConfig.java
index 954d6b6..c592f30 100644
--- a/src/main/java/com/teragrep/jla_01/IRelpAppenderConfig.java
+++ b/src/main/java/com/teragrep/jla_01/IRelpAppenderConfig.java
@@ -24,7 +24,7 @@ Reliable Event Logging Protocol (RELP) Logback plugin
  * @param <E>
  */
 public interface IRelpAppenderConfig<E> {
-    void setEncoder(LayoutWrappingEncoder encoder);
+    void setEncoder(LayoutWrappingEncoder<E> encoder);
 
     void setSender(RelpConnection sender);
 
diff --git a/src/main/java/com/teragrep/jla_01/RlpLogbackAppender.java b/src/main/java/com/teragrep/jla_01/RlpLogbackAppender.java
index fbb38db..4f4aeca 100644
--- a/src/main/java/com/teragrep/jla_01/RlpLogbackAppender.java
+++ b/src/main/java/com/teragrep/jla_01/RlpLogbackAppender.java
@@ -41,7 +41,7 @@ public class RlpLogbackAppender<E> extends AppenderBase<E> implements IRelpAppen
 	// see also https://stackoverflow.com/questions/31415899/correct-way-to-stop-custom-logback-async-appender
 
 	private RelpConnection sender;
-	private LayoutWrappingEncoder encoder;
+	private LayoutWrappingEncoder<E> encoder;
 
 	// settings for syslog messages
 	private boolean enableEventId48577;
@@ -72,7 +72,7 @@ public class RlpLogbackAppender<E> extends AppenderBase<E> implements IRelpAppen
 
 
 	@Override
-	public void setEncoder(LayoutWrappingEncoder encoder) {
+	public void setEncoder(LayoutWrappingEncoder<E> encoder) {
 		this.encoder = encoder;
 	}