diff --git a/basic-app.Rmd b/basic-app.Rmd
index 9415ae0..864fe6d 100644
--- a/basic-app.Rmd
+++ b/basic-app.Rmd
@@ -376,7 +376,7 @@ knitr::include_graphics("images/basic-app/cheatsheet.png", dpi = 300)
       dataset <- reactive({
         get(input$dataset, "package:ggplot2")
       })
-      output$summary <- renderPrint({
+      output$summmry <- renderPrint({
         summary(dataset())
       })
       output$plot <- renderPlot({