diff --git a/build.xml b/build.xml
index 2949a685..d607d2f5 100644
--- a/build.xml
+++ b/build.xml
@@ -125,8 +125,8 @@
 			</zipfileset>
 			
 			<zipfileset src="${dir.lib}/icu4j.jar">
-				<include name="com/ibm/icu/text/**" />
-			</zipfileset>			
+				<include name="com/ibm/icu/**" />
+			</zipfileset>
 
 			<zipfileset src="${dir.lib}/sublight-ws.jar">
 				<include name="net/sublight/webservice/**" />
diff --git a/lib/icu4j.jar b/lib/icu4j.jar
index abb0babb..a427d6be 100644
Binary files a/lib/icu4j.jar and b/lib/icu4j.jar differ
diff --git a/source/net/sourceforge/filebot/format/ExpressionFormat.lib.groovy b/source/net/sourceforge/filebot/format/ExpressionFormat.lib.groovy
index b91022a2..9b1abb03 100644
--- a/source/net/sourceforge/filebot/format/ExpressionFormat.lib.groovy
+++ b/source/net/sourceforge/filebot/format/ExpressionFormat.lib.groovy
@@ -117,3 +117,11 @@ String.metaClass.replacePart = { replacement = "" ->
 	// no pattern matches, nothing to replace
 	return delegate;
 }
+
+/**
+* Convert Unicode to ASCII as best as possible. This method will translate umlauts, accents, etc to corresponding ASCII characters.
+*
+* e.g. "Österreich" -> "Osterreich"
+*      "カタカナ" -> "katakana"
+*/
+String.metaClass.ascii = { com.ibm.icu.text.Transliterator.getInstance("Any-Latin;Latin-ASCII").transform(delegate).replaceAll("[^\\p{ASCII}]", "?") }