diff --git a/include/qapi/qmp/qerror.h b/include/qapi/qmp/qerror.h
index 00b18e9082..bc9116f76a 100644
--- a/include/qapi/qmp/qerror.h
+++ b/include/qapi/qmp/qerror.h
@@ -20,9 +20,6 @@
 #define QERR_INVALID_PARAMETER_VALUE \
     "Parameter '%s' expects %s"
 
-#define QERR_IO_ERROR \
-    "An IO error has occurred"
-
 #define QERR_MISSING_PARAMETER \
     "Parameter '%s' is missing"