diff --git a/dev-R/tibble/metadata.xml b/dev-R/tibble/metadata.xml
index 600cf62f70..35e77f9d9c 100644
--- a/dev-R/tibble/metadata.xml
+++ b/dev-R/tibble/metadata.xml
@@ -1,33 +1,19 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<maintainer type="person">
-		<email>lssndrbarbieri@gmail.com</email>
-		<name>Alessandro Barbieri</name>
-	</maintainer>
-	<longdescription lang="en">
-		Provides a 'tbl_df' class (the 'tibble') that provides stricter checking and better formatting than the traditional data frame.
-	</longdescription>
-	<upstream>
-		<bugs-to>
-			https://github.com/tidyverse/tibble/issues
-		</bugs-to>
-		<doc lang="en">
-			https://cran.r-project.org/web//packages/tibble/tibble.pdf
-		</doc>
-		<changelog>
-			https://cran.r-project.org/web//packages/tibble/news/news.html
-		</changelog>
-		<maintainer>
-			<name>
-				Kirill Müller
-			</name>
-			<email>
-				krlmlr+r@mailbox.org
-			</email>
-		</maintainer>
-		<remote-id type="github">
-			tidyverse/tibble
-		</remote-id>
-	</upstream>
+  <maintainer type="person">
+    <email>lssndrbarbieri@gmail.com</email>
+    <name>Alessandro Barbieri</name>
+  </maintainer>
+  <longdescription lang="en">Provides a 'tbl_df' class (the 'tibble') that provides stricter checking and better formatting than the traditional data frame.</longdescription>
+  <upstream>
+    <bugs-to>https://github.com/tidyverse/tibble/issues</bugs-to>
+    <doc lang="en">https://cran.r-project.org/web//packages/tibble/tibble.pdf</doc>
+    <changelog>https://cran.r-project.org/web//packages/tibble/news/news.html</changelog>
+    <maintainer>
+      <name>Kirill M&#195;&#188;ller</name>
+      <email>krlmlr+r@mailbox.org</email>
+    </maintainer>
+    <remote-id type="github">tidyverse/tibble</remote-id>
+  </upstream>
 </pkgmetadata>