diff --git a/tests/data/test962 b/tests/data/test962
index 80292862ba..2573d72582 100644
--- a/tests/data/test962
+++ b/tests/data/test962
@@ -24,7 +24,6 @@ codeset-utf8
 </features>
 <setenv>
 LC_ALL=en_US.UTF-8
-LC_CTYPE=en_US.UTF-8
 </setenv>
 <name>
 SMTP without SMTPUTF8 support - UTF-8 based sender (host part only)