diff --git a/src/libcamera/device_enumerator_udev.cpp b/src/libcamera/device_enumerator_udev.cpp
index 56ca4dc2..96689daa 100644
--- a/src/libcamera/device_enumerator_udev.cpp
+++ b/src/libcamera/device_enumerator_udev.cpp
@@ -27,7 +27,7 @@ namespace libcamera {
 LOG_DECLARE_CATEGORY(DeviceEnumerator)
 
 DeviceEnumeratorUdev::DeviceEnumeratorUdev()
-	: udev_(nullptr)
+	: udev_(nullptr), monitor_(nullptr), notifier_(nullptr)
 {
 }