diff --git a/core/src/main/java/hudson/model/RSS.java b/core/src/main/java/hudson/model/RSS.java
index 71bd5753e30cd169fe980d9d47f33827f5eab0a8..1d4870d13c8b2d84097bb935a662fee5d8a19cac 100644
--- a/core/src/main/java/hudson/model/RSS.java
+++ b/core/src/main/java/hudson/model/RSS.java
@@ -82,6 +82,12 @@ public final class RSS {
         if(flavor==null)    flavor="atom";
         flavor = flavor.replace('/', '_'); // Don't allow path to any jelly
 
+        if (flavor.equals("atom")) {
+            rsp.setContentType("application/atom+xml; charset=UTF-8");
+        } else {
+            rsp.setContentType("text/xml; charset=UTF-8");
+        }
+
         req.getView(Jenkins.get(),"/hudson/"+flavor+".jelly").forward(req,rsp);
     }
 }
diff --git a/test/src/test/java/hudson/model/RSSTest.java b/test/src/test/java/hudson/model/RSSTest.java
index 35341e1f1f723ca08ae295f37371227d950e8528..cf081b182f0d404558bf5e5e41c05221c98b2a04 100644
--- a/test/src/test/java/hudson/model/RSSTest.java
+++ b/test/src/test/java/hudson/model/RSSTest.java
@@ -42,10 +42,7 @@ public class RSSTest {
     @Rule
     public JenkinsRule j = new JenkinsRule();
 
-    //TODO remove the @Ignore 
-    // Seems the XML parser on the CI machine is different / more picky than the one on my machine, will be covered by JENKINS-59231 to improve the code coverage
     @Test
-    @Ignore("XML parser too picky on CI")
     @Issue("JENKINS-59167")
     public void absoluteURLsPresentInRSS_evenWithoutRootUrlSetup() throws Exception {
         XmlPage page = getRssPage();
@@ -76,10 +73,7 @@ public class RSSTest {
         }
     }
 
-    //TODO remove the @Ignore 
-    // Seems the XML parser on the CI machine is different / more picky than the one on my machine, will be covered by JENKINS-59231 to improve the code coverage
     @Test
-    @Ignore("XML parser too picky on CI")
     @Issue("JENKINS-59167")
     public void absoluteURLsPresentInAtom_evenWithoutRootUrlSetup() throws Exception {
         XmlPage page = getAtomPage();