diff --git a/libevdev/libevdev-int.h b/libevdev/libevdev-int.h
index 99f4ab3..911dc40 100644
--- a/libevdev/libevdev-int.h
+++ b/libevdev/libevdev-int.h
@@ -173,6 +173,9 @@ queue_shift(struct libevdev *dev, struct input_event *ev)
 static inline int
 queue_alloc(struct libevdev *dev, size_t size)
 {
+	if (size == 0)
+		return -ENOSPC;
+
 	dev->queue = calloc(size, sizeof(struct input_event));
 	if (!dev->queue)
 		return -ENOSPC;