diff --git a/inst/ShinyGR/ui.R b/inst/ShinyGR/ui.R
index 29ba3e1b6598a12e00226318ca87b16427aeee10..2f023592740260182f09b5ba719a02ecf9db4536 100644
--- a/inst/ShinyGR/ui.R
+++ b/inst/ShinyGR/ui.R
@@ -56,7 +56,7 @@ navbarPage(title       = div("airGRteaching",
                                                ),
 
 
-                                               h4("Parameters values:"),
+                                               h4("Parameter values:"),
                                                sliderInput("X1", label = "X1  (production store capacity)",
                                                            post = "  [mm]",
                                                            min = 0,