1 files changed, 5 insertions, 0 deletions
diff --git a/tests/it.t b/tests/it.t
index 0075f41..22fd194 100755
--- a/tests/it.t
+++ b/tests/it.t
@@ -79,6 +79,11 @@ match(
 	'  |#',
 	'don\'t include umlaute in \W'
 	);
+match(
+	'\ba', 'äa',
+	'',
+	'\b must know umlauts'
+	);
 
 eval( '$escapedwordregex = "' . it::convertregex( '\w' ) . '";' );
 $escapedwordregex = preg_replace( '|[\\\\/]|', '', $escapedwordregex );