1 files changed, 3 insertions, 1 deletions
diff --git a/src/OutputUHD.h b/src/OutputUHD.h
index 124ff93..c38f151 100644
--- a/src/OutputUHD.h
+++ b/src/OutputUHD.h
@@ -152,7 +152,9 @@ class UHDWorker {
         }
 
         void stop() {
-            uwd->running = false;
+            if (uwd) {
+                uwd->running = false;
+            }
             uhd_thread.interrupt();
             uhd_thread.join();
         }