diff --git a/inst/examples/Button3.R b/inst/examples/Button3.R
index 02db36ef..87f6a060 100644
--- a/inst/examples/Button3.R
+++ b/inst/examples/Button3.R
@@ -33,7 +33,7 @@ ui <- function(id) {
         )
       )
     ),
-    textOutput("file_path")
+    textOutput(ns("file_path"))
   )
 }
 
diff --git a/man/Button.Rd b/man/Button.Rd
index d96917e5..1a318837 100644
--- a/man/Button.Rd
+++ b/man/Button.Rd
@@ -377,7 +377,7 @@ ui <- function(id) {
         )
       )
     ),
-    textOutput("file_path")
+    textOutput(ns("file_path"))
   )
 }