diff --git a/src/grib_accessor_class_data_g1simple_packing.c b/src/grib_accessor_class_data_g1simple_packing.c
index 81a6d0c1e..df628f522 100644
--- a/src/grib_accessor_class_data_g1simple_packing.c
+++ b/src/grib_accessor_class_data_g1simple_packing.c
@@ -278,12 +278,12 @@ static int pack_double(grib_accessor* a, const double* cval, size_t *len)
         return GRIB_SUCCESS;
         break;
     case GRIB_INVALID_BPV:
-        grib_context_log(a->context,GRIB_LOG_ERROR,"unable to compute packing parameters\n");
+        grib_context_log(a->context,GRIB_LOG_ERROR,"unable to compute packing parameters. Invalid bits per value\n");
         return ret;
     case GRIB_SUCCESS:
         break;
     default:
-        grib_context_log(a->context,GRIB_LOG_FATAL,"unable to compute packing parameters\n");
+        grib_context_log(a->context,GRIB_LOG_ERROR,"unable to compute packing parameters\n");
         return ret;
     }