diff --git a/qemu/include/qapi/qmp/qerror.h b/qemu/include/qapi/qmp/qerror.h
index 71730eeb..53782efe 100644
--- a/qemu/include/qapi/qmp/qerror.h
+++ b/qemu/include/qapi/qmp/qerror.h
@@ -127,9 +127,6 @@
 #define QERR_UNDEFINED_ERROR \
     "An undefined error has occurred"
 
-#define QERR_UNKNOWN_BLOCK_FORMAT_FEATURE \
-    "'%s' uses a %s feature which is not supported by this qemu version: %s"
-
 #define QERR_UNSUPPORTED \
     "this feature or command is not currently supported"