diff --git a/include/blspec.h b/include/blspec.h
index afac5ed..e22e9be 100644
--- a/include/blspec.h
+++ b/include/blspec.h
@@ -35,6 +35,7 @@
 
 int blspec_scan_devices(struct blspec *blspec);
 
+int blspec_scan_device(struct blspec *blspec, struct device_d *dev);
 int blspec_scan_devicename(struct blspec *blspec, const char *devname);
 int blspec_scan_directory(struct blspec *blspec, const char *root);