diff --git a/DESCRIPTION b/DESCRIPTION
index 80afa6203195434d8e498fdb41c50b0c97ef8773..70c5e92a430878bfcd72431cfd0367e2e3b3479d 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: airGR
 Type: Package
 Title: Suite of GR Hydrological Models for Precipitation-Runoff Modelling
-Version: 1.3.2.3
+Version: 1.3.2.4
 Date: 2019-05-22
 Authors@R: c(
   person("Laurent", "Coron", role = c("aut", "trl"), comment = c(ORCID = "0000-0002-1503-6204")),
diff --git a/NEWS.rmd b/NEWS.rmd
index 6a49d6037bb21091ceab4b9d7fa371beed1b0c1f..38a740db3676589110075b0994e9d2616ba2e2ef 100644
--- a/NEWS.rmd
+++ b/NEWS.rmd
@@ -14,7 +14,7 @@ output:
 
 
 
-### 1.3.2.3 Release Notes (2019-05-22)
+### 1.3.2.4 Release Notes (2019-05-22)
 
 
 #### New features
diff --git a/R/PE_Oudin.R b/R/PE_Oudin.R
index e02bfa4751ac7d99acefb85d9f3eed1732a977b5..f474924d7acdca563a7d3293dbced0ad52ec9ab4 100644
--- a/R/PE_Oudin.R
+++ b/R/PE_Oudin.R
@@ -53,6 +53,12 @@ PE_Oudin <- function(JD, Temp,
   if (!(TimeStepOut %in% c("daily", "hourly"))) {
     stop("'TimeStepOut' must be one of \"daily\" or \"hourly\"")
   }
+  if (TimeStepIn == "daily") {
+    rleJD <- rle(JD)
+    if (any(rleJD$lengths != 1)) {
+      stop("each day must have only one identical value of julian days")
+    }
+  }
   
   
   ## ---------- hourly inputs aggregation