diff --git a/definitions/grib1/local.98.19.def b/definitions/grib1/local.98.19.def
index 7c9a4f613..5e3c27e64 100644
--- a/definitions/grib1/local.98.19.def
+++ b/definitions/grib1/local.98.19.def
@@ -12,6 +12,7 @@ alias perturbationNumber=number;
 
 unsigned[1] ensembleSize  : dump;
 alias totalNumber=ensembleSize;
+alias numberOfForecastsInEnsemble=ensembleSize;
 
 meta quantile sprintf("%s:%s",number,ensembleSize);