diff --git a/DESCRIPTION b/DESCRIPTION
index 3fd4ad07ad1f7213636031db9b59d0e628165d8d..c6c9660601a5b9663203dc188073760254c6080c 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,8 +1,8 @@
 Package: airGR
 Type: Package
 Title: Suite of GR Hydrological Models for Precipitation-Runoff Modelling
-Version: 1.4.7.4
-Date: 2020-05-01
+Version: 1.4.7.5
+Date: 2020-05-04
 Authors@R: c(
   person("Laurent", "Coron", role = c("aut", "trl"), comment = c(ORCID = "0000-0002-1503-6204")),
   person("Olivier", "Delaigue", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-7668-8468"), email = "airGR@inrae.fr"),
diff --git a/NEWS.md b/NEWS.md
index 495cd011cc3f5dac52662506325b019332d2c46a..e5317ac955b3001471d6d15eac5e407092ebf4b2 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -4,7 +4,7 @@
 
 
 
-### 1.4.7.4 Release Notes (2020-05-01)
+### 1.4.7.5 Release Notes (2020-05-04)
 
 #### New features
 
diff --git a/R/SeriesAggreg2.default.R b/R/SeriesAggreg2.default.R
index 971eb64c390c7a2809d375e36f69cdca3e08a912..f4921e9705279b5f756b5c6dac3227e28ded54cf 100644
--- a/R/SeriesAggreg2.default.R
+++ b/R/SeriesAggreg2.default.R
@@ -55,7 +55,7 @@ SeriesAggreg2.default <- function(TabSeries,
                                 ConvertFun = rep("sum", ncol(TabSeries2)-1),
                                 YearFirstMonth = YearFirstMonth, TimeLag = TimeLag,
                                 verbose = verbose)
-  res$zzz <- NULL
+  TabSeries$zzz <- NULL
   
   
   if (simplify) {