diff --git a/pom.xml b/pom.xml
index fc6da13..13049e4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>nl.andrewl</groupId>
     <artifactId>record-net</artifactId>
-    <version>1.3.3</version>
+    <version>1.3.4</version>
 
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
diff --git a/src/main/java/nl/andrewl/record_net/MessageUtils.java b/src/main/java/nl/andrewl/record_net/MessageUtils.java
index 5a277f2..d3eb1e0 100644
--- a/src/main/java/nl/andrewl/record_net/MessageUtils.java
+++ b/src/main/java/nl/andrewl/record_net/MessageUtils.java
@@ -66,6 +66,8 @@ public class MessageUtils {
 			return Short.BYTES;
 		} else if (o instanceof Long) {
 			return Long.BYTES;
+		} else if (o instanceof Boolean) {
+			return 1;
 		} else if (o instanceof String) {
 			return getByteSize((String) o);
 		} else if (o instanceof UUID) {