diff --git a/definitions/grib1/local.98.11.def b/definitions/grib1/local.98.11.def
index 475ab900f..6fa5a484d 100644
--- a/definitions/grib1/local.98.11.def
+++ b/definitions/grib1/local.98.11.def
@@ -32,5 +32,5 @@ constant secondsOfAnalysis = 0;
 meta dateOfAnalysis  g1date(centuryOfAnalysis,yearOfAnalysis,monthOfAnalysis,dayOfAnalysis) : dump;
 meta timeOfAnalysis  time(hourOfAnalysis,minuteOfAnalysis,secondsOfAnalysis) : dump;
 
-alias date = dateOfAnalysis;
-alias time = timeOfAnalysis;
+alias mars.date = dateOfAnalysis;
+alias mars.time = timeOfAnalysis;
diff --git a/definitions/grib2/local.98.11.def b/definitions/grib2/local.98.11.def
index 3676a5463..58ff884b7 100644
--- a/definitions/grib2/local.98.11.def
+++ b/definitions/grib2/local.98.11.def
@@ -15,5 +15,5 @@ constant secondsOfAnalysis = 0;
 meta dateOfAnalysis  g2date(yearOfAnalysis,monthOfAnalysis,dayOfAnalysis) : dump;
 meta timeOfAnalysis  time(hourOfAnalysis,minuteOfAnalysis,secondsOfAnalysis) : dump;
 
-alias date = dateOfAnalysis;
-alias time = timeOfAnalysis;
+alias mars.date = dateOfAnalysis;
+alias mars.time = timeOfAnalysis;