diff --git a/R/input_class.R b/R/input_class.R
index 76f8faf..75ea9be 100644
--- a/R/input_class.R
+++ b/R/input_class.R
@@ -147,6 +147,7 @@ Input <- setRefClass(
       }
       if (!emptyField(validFunc)) value <<- validFunc(evalValue(newValue, env), getParams())
       assign(name, value, envir = env)
+      valueHasChanged <<- FALSE
       value
     },