diff --git a/dev-python/uranium/metadata.xml b/dev-python/uranium/metadata.xml
index dc7980d97fee5..405a9b0ee3565 100644
--- a/dev-python/uranium/metadata.xml
+++ b/dev-python/uranium/metadata.xml
@@ -1,23 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-    <maintainer type="person">
-        <email>tomboy64@sina.cn</email>
-        <name>Matthew Brewer</name>
-    </maintainer>
-    <maintainer type="project">
-        <email>3dprint@gentoo.org</email>
-        <name>Gentoo 3D Printer Project</name>
-    </maintainer>
-    <maintainer type="project">
-        <email>proxy-maint@gentoo.org</email>
-        <name>Gentoo Proxy Maintainers Project</name>
-    </maintainer>
-    <maintainer type="project">
-        <email>python@gentoo.org</email>
-        <name>Gentoo Python Project</name>
-    </maintainer>
-    <upstream>
+	<maintainer type="person">
+		<email>tomboy64@sina.cn</email>
+		<name>Matthew Brewer</name>
+	</maintainer>
+	<maintainer type="project">
+		<email>3dprint@gentoo.org</email>
+		<name>Gentoo 3D Printer Project</name>
+	</maintainer>
+	<maintainer type="project">
+		<email>proxy-maint@gentoo.org</email>
+		<name>Gentoo Proxy Maintainers Project</name>
+	</maintainer>
+	<maintainer type="project">
+		<email>python@gentoo.org</email>
+		<name>Gentoo Python Project</name>
+	</maintainer>
+	<upstream>
 		<remote-id type="github">Ultimaker/Uranium</remote-id>
-    </upstream>
+	</upstream>
 </pkgmetadata>