diff --git a/src/test/extension.test.ts b/src/test/extension.test.ts
index 7eb816a..45666e7 100644
--- a/src/test/extension.test.ts
+++ b/src/test/extension.test.ts
@@ -76,6 +76,10 @@ describe("V2XmlFormatter", () => {
             testFormatter(xmlFormatter, options, "issue-187");
         });
 
+        it("should not ruin attributes with unusual characters", () => {
+            testFormatter(xmlFormatter, options, "issue-189");
+        });
+
     });
 
 });
diff --git a/src/test/test-data/issue-189.formatted.xml b/src/test/test-data/issue-189.formatted.xml
new file mode 100644
index 0000000..b3a3d19
--- /dev/null
+++ b/src/test/test-data/issue-189.formatted.xml
@@ -0,0 +1,5 @@
+<!DOCTYPE xml>
+<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-189.unformatted.xml b/src/test/test-data/issue-189.unformatted.xml
new file mode 100644
index 0000000..952ff72
--- /dev/null
+++ b/src/test/test-data/issue-189.unformatted.xml
@@ -0,0 +1,5 @@
+<!DOCTYPE xml>
+<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