diff --git a/network/mail/thunderbird/files/pisilinux/mozconfig b/network/mail/thunderbird/files/pisilinux/mozconfig
index 986548a4aa..1ea3274e9b 100644
--- a/network/mail/thunderbird/files/pisilinux/mozconfig
+++ b/network/mail/thunderbird/files/pisilinux/mozconfig
@@ -16,7 +16,8 @@ ac_add_options --enable-update-channel=release
 
 ac_add_options --with-system-nspr
 #ac_add_options --with-system-nss
-ac_add_options --with-system-icu
+ac_add_options --without-system-icu
+#ac_add_options --with-system-icu
 ac_add_options --with-system-jpeg
 ac_add_options --with-system-zlib
 ac_add_options --with-system-bz2