diff --git a/src/formatting/formatters/v2-xml-formatter.ts b/src/formatting/formatters/v2-xml-formatter.ts
index 8b0fcbb..281f631 100644
--- a/src/formatting/formatters/v2-xml-formatter.ts
+++ b/src/formatting/formatters/v2-xml-formatter.ts
@@ -163,6 +163,10 @@ export class V2XmlFormatter implements XmlFormatter {
                     && ((options.splitXmlnsOnFormat
                         && xml.substr(i, 5).toLowerCase() === "xmlns")
                         || options.splitAttributesOnFormat)) {
+
+                    // trim the end of output here to ensure there is no trailing whitespace (issue #288)
+                    output = this._removeTrailingNonBreakingWhitespace(output);
+
                     output += `${options.newLine}${this._getIndent(options, indentLevel)}`;
                 }
 
diff --git a/src/test/extension.test.ts b/src/test/extension.test.ts
index 31f44e7..dc4e04d 100644
--- a/src/test/extension.test.ts
+++ b/src/test/extension.test.ts
@@ -103,6 +103,10 @@ describe("V2XmlFormatter", () => {
         it("should not touch CDATA content", () => {
             testFormatter(xmlFormatter, options, "issue-293");
         });
+
+        it("should not add trailing whitespace", () => {
+            testFormatter(xmlFormatter, options, "issue-288");
+        });
     });
 
     describe("#minifyXml(xml, options)", () => {
diff --git a/src/test/test-data/issue-189.formatted.xml b/src/test/test-data/issue-189.formatted.xml
index b3a3d19..952ff72 100644
--- a/src/test/test-data/issue-189.formatted.xml
+++ b/src/test/test-data/issue-189.formatted.xml
@@ -1,5 +1,5 @@
 <!DOCTYPE xml>
-<core:FragmentDefinition xmlns="sap.m" 
+<core:FragmentDefinition xmlns="sap.m"
     xmlns:core="sap.ui.core">
     <Text text="{parts: ['i18n>dialog.countdown.text','view>/Countdown'],formatter: 'jQuery.sap.formatMessage'}" />
 </core:FragmentDefinition>
\ No newline at end of file
diff --git a/src/test/test-data/issue-257.formatted.xml b/src/test/test-data/issue-257.formatted.xml
index 842df62..7cfe79e 100644
--- a/src/test/test-data/issue-257.formatted.xml
+++ b/src/test/test-data/issue-257.formatted.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<xsl:stylesheet version="2.0" 
+<xsl:stylesheet version="2.0"
     xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
     <xsl:output method="xml" encoding="UTF-8" indent="yes" />
 
diff --git a/src/test/test-data/issue-288.formatted.xml b/src/test/test-data/issue-288.formatted.xml
new file mode 100644
index 0000000..8231c91
--- /dev/null
+++ b/src/test/test-data/issue-288.formatted.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+    xmlns="http://purl.org/rss/1.0/"
+    xmlns:content="http://purl.org/rss/1.0/modules/content/"
+    xmlns:taxo="http://purl.org/rss/1.0/modules/taxonomy/"
+    xmlns:dc="http://purl.org/dc/elements/1.1/"
+    xmlns:syn="http://purl.org/rss/1.0/modules/syndication/"
+    xmlns:admin="http://webns.net/mvcb/">
+
+</rdf:RDF>
\ No newline at end of file
diff --git a/src/test/test-data/issue-288.unformatted.xml b/src/test/test-data/issue-288.unformatted.xml
new file mode 100644
index 0000000..8231c91
--- /dev/null
+++ b/src/test/test-data/issue-288.unformatted.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+    xmlns="http://purl.org/rss/1.0/"
+    xmlns:content="http://purl.org/rss/1.0/modules/content/"
+    xmlns:taxo="http://purl.org/rss/1.0/modules/taxonomy/"
+    xmlns:dc="http://purl.org/dc/elements/1.1/"
+    xmlns:syn="http://purl.org/rss/1.0/modules/syndication/"
+    xmlns:admin="http://webns.net/mvcb/">
+
+</rdf:RDF>
\ No newline at end of file