diff --git a/avaje-jex-http3-flupke/src/main/java/io/avaje/jex/http3/flupke/FlupkeSystemLogger.java b/avaje-jex-http3-flupke/src/main/java/io/avaje/jex/http3/flupke/FlupkeSystemLogger.java
index f95bdf80..3d8c803e 100644
--- a/avaje-jex-http3-flupke/src/main/java/io/avaje/jex/http3/flupke/FlupkeSystemLogger.java
+++ b/avaje-jex-http3-flupke/src/main/java/io/avaje/jex/http3/flupke/FlupkeSystemLogger.java
@@ -26,13 +26,12 @@ protected void log(String text) {
 
   @Override
   protected void log(String text, Throwable throwable) {
-    if (throwable == null) {
-      LOG.log(Level.ERROR, text);
-      return;
-    }
-
     this.lock.lock();
     try {
+      if (throwable == null) {
+        LOG.log(Level.ERROR, text);
+        return;
+      }
       LOG.log(Level.ERROR, text, throwable);
     } finally {
       this.lock.unlock();