diff --git a/DESCRIPTION b/DESCRIPTION
index 47eb81f47c3afcb69b2419eccf252c1cd11fce4b..ad1c119c9a6d2aea3091af61854c17270618ffa0 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: airGR
 Type: Package
 Title: Suite of GR Hydrological Models for Precipitation-Runoff Modelling
-Version: 1.2.9.4
+Version: 1.2.9.5
 Date: 2019-03-13
 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 af6e4d2d6a88fd70e8f34315d59548b0116eb989..5f49f786abce66e070c4e82bfe340ad7fddf6055 100644
--- a/NEWS.rmd
+++ b/NEWS.rmd
@@ -13,7 +13,7 @@ output:
 
 
 
-### 1.2.9.4 Release Notes (2019-03-13) 
+### 1.2.9.5 Release Notes (2019-03-13) 
 
 
 
diff --git a/R/Calibration.R b/R/Calibration.R
index 6c6f4980fc7ca631e66a3f2bdd1ab0cf93f64d01..adc66d8e94b2935475084e216e2c1bd777c32c23 100644
--- a/R/Calibration.R
+++ b/R/Calibration.R
@@ -4,7 +4,9 @@ Calibration <- function(InputsModel, RunOptions, InputsCrit, CalibOptions,
   FUN_MOD   <- match.fun(FUN_MOD)
   FUN_CRIT  <- match.fun(FUN_CRIT)
   FUN_CALIB <- match.fun(FUN_CALIB)
-  FUN_TRANSFO <- match.fun(FUN_TRANSFO)
+  if (!is.null(FUN_TRANSFO)) {
+    FUN_TRANSFO <- match.fun(FUN_TRANSFO)
+  }
   return(FUN_CALIB(InputsModel, RunOptions, InputsCrit, CalibOptions, FUN_MOD, FUN_CRIT, FUN_TRANSFO, verbose = verbose))
 }