diff --git a/R/plot-spc-extended.R b/R/plot-spc-extended.R
index 6c691b5..7edb6e9 100644
--- a/R/plot-spc-extended.R
+++ b/R/plot-spc-extended.R
@@ -413,8 +413,8 @@ plot_spc_ext <- function(spc_tbl, spc_tbl_l = NULL,
         alpha = alpha, size = line_width)
       if (!is.null(group_color_palette)) {
         p <- p +
-          scale_colour_brewer(type = "div", palette = group_color_palette,
-            direction = -1)
+          ggplot2::scale_colour_brewer(type = "div",
+            palette = group_color_palette, direction = -1)
 
       }
     if (group_legend == FALSE) {
diff --git a/README.md b/README.md
index 34f112c..9e910a8 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,10 @@
 <a href="https://github.com/philipp-baumann/simplerspec/blob/master/simplerspec-logo.png"><img src="https://github.com/philipp-baumann/simplerspec/blob/master/man/figures/simplerspec-logo.png" width="300"/></a>
 
-Travis-CI build status (Debian Linux) [![Travis Build Status](https://travis-ci.org/philipp-baumann/simplerspec.svg?branch=master)](https://travis-ci.org/philipp-baumann/simplerspec)
-
-AppVeyor build status (Windows) [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/github/philipp-baumann/simplerspec?branch=master&svg=true)](https://ci.appveyor.com/project/philipp-baumann/simplerspec)
-
+<!-- badges: start -->
+[![Travis Build Status](https://travis-ci.org/philipp-baumann/simplerspec.svg?branch=master)](https://travis-ci.org/philipp-baumann/simplerspec)
+[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/github/philipp-baumann/simplerspec?branch=master&svg=true)](https://ci.appveyor.com/project/philipp-baumann/simplerspec)
 [![DOI](https://zenodo.org/badge/67121732.svg)](https://zenodo.org/badge/latestdoi/67121732)
+<!-- badges: end -->
 
 # Short description