diff --git a/test/timer.cpp b/test/timer.cpp
index 6a3cda70bef4..3d1a78ac2768 100644
--- a/test/timer.cpp
+++ b/test/timer.cpp
@@ -19,7 +19,8 @@ using namespace libcamera;
 class ManagedTimer : public Timer
 {
 public:
-	ManagedTimer() : Timer()
+	ManagedTimer() :
+		Timer(), interval_(0)
 	{
 		timeout.connect(this, &ManagedTimer::timeoutHandler);
 	}