diff --git a/DESCRIPTION b/DESCRIPTION
index 576b8e983a54e3e20d9d71ff071b22b5b6ae2ecc..3d61cb7d545be524f388677d4356c6397710052b 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: airGR
 Type: Package
 Title: Suite of GR Hydrological Models for Precipitation-Runoff Modelling
-Version: 1.2.9.16
+Version: 1.2.9.17
 Date: 2019-03-18
 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 e0c999a897f7ec349d7f93b3e4cfd06802dc3bf7..29f7061a7ac2e24a3a7e4ca556eb907b2931de42 100644
--- a/NEWS.rmd
+++ b/NEWS.rmd
@@ -13,7 +13,7 @@ output:
 
 
 
-### 1.2.9.16 Release Notes (2019-03-18) 
+### 1.2.9.17 Release Notes (2019-03-18) 
 
 
 
diff --git a/R/plot.OutputsModel.R b/R/plot.OutputsModel.R
index fddf412e2db1b3328d63150fa3cd0ce7344f8e87..06fe4b3badf1f9c5242eb5d92433c6d0d71ed846 100644
--- a/R/plot.OutputsModel.R
+++ b/R/plot.OutputsModel.R
@@ -28,7 +28,7 @@ plot.OutputsModel <- function(x, Qobs = NULL, IndPeriod_Plot = NULL, BasinArea =
     if (sum(is.na(Qobs)) != length(Qobs)) {
       BOOL_Qobs <- TRUE
     }
-  } else if (inherits(OutputsModel, "GR")) {
+  } else if (inherits(OutputsModel, "GR") & !is.null(Qobs)) {
     warning("Incorrect length of 'Qobs'. Time series of observed flow not drawn")
   }
   BOOL_Snow <- FALSE