diff --git a/scsh/test/pattern-matching-test.scm b/scsh/test/pattern-matching-test.scm
index 009889e..934f2ae 100644
--- a/scsh/test/pattern-matching-test.scm
+++ b/scsh/test/pattern-matching-test.scm
@@ -130,7 +130,7 @@
 		       "a")
 	 (string-match (rx (posix-string "[aeiou]+|x*|y{3,5}"))
 		       "x")
-	 (string-match (rx (posix-string "[aeiou]+|x*|y{3,5}"))
+	 (string-match (rx (posix-string "[aeiou]+|x*|y{3,5}")) ; does not work on Solaris
 		       "")
 	 (string-match (rx (posix-string "[aeiou]+|x*|y{3,5}"))
 		       "yyyy"))))