diff --git a/R/Utils.R b/R/Utils.R
index 355db18b715accfcfdfb257fae59df2f7b9faeb9..6dbe71be414e98ee67629ef2b2af91b36003f5bf 100644
--- a/R/Utils.R
+++ b/R/Utils.R
@@ -60,7 +60,7 @@
                                monthly = 365.2425 / 12 * 24,
                                yearly  =      365.2425 * 24)
     res$TimeStep     <- res$TimeStep * 3600
-    res$TimeStepMean <- res$TimeStepMean * 3600
+    res$TimeStepMean <- as.integer(res$TimeStepMean * 3600)
     res$Class <- c(res$TimeUnit, res$Class)
     if (grepl("CemaNeige", res$NameFunMod)) {
       res$Class <- c(res$Class, "CemaNeige")