diff --git a/libevdev/libevdev.c b/libevdev/libevdev.c
index 0523c53..0107e72 100644
--- a/libevdev/libevdev.c
+++ b/libevdev/libevdev.c
@@ -524,7 +524,7 @@ int libevdev_next_event(struct libevdev *dev, unsigned int flags, struct input_e
 	if (dev->fd < 0)
 		return -ENODEV;
 
-	if (flags & ER_SYNC) {
+	if (flags & LIBEVDEV_READ_SYNC) {
 		if (!dev->need_sync && dev->queue_nsync == 0)
 			return -EAGAIN;
 		else if (dev->need_sync) {
@@ -552,7 +552,7 @@ int libevdev_next_event(struct libevdev *dev, unsigned int flags, struct input_e
 		rc = 1;
 	}
 
-	if (flags & ER_SYNC && dev->queue_nsync > 0) {
+	if (flags & LIBEVDEV_READ_SYNC && dev->queue_nsync > 0) {
 		dev->queue_nsync--;
 		rc = 1;
 	}
diff --git a/libevdev/libevdev.h b/libevdev/libevdev.h
index 4a6e183..5a316eb 100644
--- a/libevdev/libevdev.h
+++ b/libevdev/libevdev.h
@@ -29,9 +29,7 @@
 struct libevdev;
 
 enum EvdevReadFlags {
-    ER_SINGLE		= 1, /**< Read until including the first EV_SYN or EAGAIN */
-    ER_SYNC		= 2, /**< Process data in sync mode */
-    ER_ALL		= 4, /**< Read until EAGAIN */
+    LIBEVDEV_READ_SYNC		= 1, /**< Process data in sync mode */
 };
 
 
diff --git a/test/libevdev-events.c b/test/libevdev-events.c
index 8279229..2b0f703 100644
--- a/test/libevdev-events.c
+++ b/test/libevdev-events.c
@@ -103,7 +103,7 @@ main(int argc, char **argv)
 			printf("::::::::::::::::::::: dropped ::::::::::::::::::::::\n");
 			while (rc == 1) {
 				print_sync_event(&ev);
-				rc = libevdev_next_event(dev, ER_SYNC, &ev);
+				rc = libevdev_next_event(dev, LIBEVDEV_READ_SYNC, &ev);
 			}
 			printf("::::::::::::::::::::: re-synced ::::::::::::::::::::::\n");
 		} else if (rc == 0)