diff --git a/libnxwidgets/src/cnxserver.cxx b/libnxwidgets/src/cnxserver.cxx
index f8d2dfe9c..d5d499e67 100644
--- a/libnxwidgets/src/cnxserver.cxx
+++ b/libnxwidgets/src/cnxserver.cxx
@@ -481,7 +481,9 @@ FAR void *CNxServer::listener(FAR void *arg)
 
   CNxServer *This = (CNxServer*)arg;
 
+#ifdef CONFIG_TASK_NAME_SIZE > 0
   prctl(PR_SET_NAME, "CNxServer::listener", 0);
+#endif
 
   // Process events forever
 
diff --git a/nxwm/src/ctouchscreen.cxx b/nxwm/src/ctouchscreen.cxx
index 9a4b777b8..5cf18f94c 100644
--- a/nxwm/src/ctouchscreen.cxx
+++ b/nxwm/src/ctouchscreen.cxx
@@ -279,7 +279,9 @@ FAR void *CTouchscreen::listener(FAR void *arg)
 {
   CTouchscreen *This = (CTouchscreen *)arg;
 
+#if CONFIG_TASK_NAME_SIZE > 0
   prctl(PR_SET_NAME, "CTouchScreen::listener", 0);
+#endif
 
   _info("Listener started\n");