diff --git a/testsuite b/testsuite
index 00efe31050a785311f2111a8fcf9695a0474e69f..d82f54cc911d1bb5807904f063d9f354a17fc3dd 100755
--- a/testsuite
+++ b/testsuite
@@ -68,7 +68,7 @@ trap cleanup EXIT
 
 section "simple failing run"
 # hddemux with no arguments and no listening file descriptors should fail:
-if "$hddemux"; then
+if "$hddemux" 2>&1; then
     false
 fi