diff --git a/qerror.h b/qerror.h
index 27e69b1..baca7de 100644
--- a/qerror.h
+++ b/qerror.h
@@ -66,6 +66,9 @@
 #define QERR_DEVICE_NOT_REMOVABLE \
     "{ 'class': 'DeviceNotRemovable', 'data': { 'device': %s } }"
 
+#define QERR_DEVICE_NO_BUS \
+    "{ 'class': 'DeviceNoBus', 'data': { 'device': %s } }"
+
 #define QERR_FD_NOT_FOUND \
     "{ 'class': 'FdNotFound', 'data': { 'name': %s } }"