diff --git a/R/chunk_images.R b/R/chunk_images.R
index c3b1a86f..c93a4d00 100644
--- a/R/chunk_images.R
+++ b/R/chunk_images.R
@@ -556,7 +556,7 @@ plot_chunk <- function(value, width = 1, height = .2,
 #'       scale_fill_gradient2(
 #'         low = "blue",
 #'         mid = "white", high = "red", limits = c(-1, 1),
-#'         guide = FALSE
+#'         guide = "none"
 #'       ) +
 #'       theme_void()
 #'   }
diff --git a/man/gg_chunk.Rd b/man/gg_chunk.Rd
index 173d4c60..a4315d3a 100644
--- a/man/gg_chunk.Rd
+++ b/man/gg_chunk.Rd
@@ -51,7 +51,7 @@ if (require("ggplot2")) {
       scale_fill_gradient2(
         low = "blue",
         mid = "white", high = "red", limits = c(-1, 1),
-        guide = FALSE
+        guide = "none"
       ) +
       theme_void()
   }