diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index e9e4c6db2..054c24a4b 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -2085,6 +2085,7 @@ int wlr_drm_backend_get_non_master_fd(struct wlr_backend *backend) {
 
 	if (drmIsMaster(fd) && drmDropMaster(fd) < 0) {
 		wlr_log_errno(WLR_ERROR, "Failed to drop master");
+		close(fd);
 		return -1;
 	}