diff --git a/package/zabbix/Config.in b/package/zabbix/Config.in
index 377c0ff692..af677f782e 100644
--- a/package/zabbix/Config.in
+++ b/package/zabbix/Config.in
@@ -26,7 +26,7 @@ config BR2_PACKAGE_ZABBIX_SERVER
 	depends on BR2_USE_MMU # mysql, postgresql
 	depends on \
 		(BR2_INSTALL_LIBSTDCPP && BR2_TOOLCHAIN_HAS_THREADS) || \
-		(BR2_USE_WCHAR && !BR2_STATIC_LIBS)
+		(BR2_USE_WCHAR && !BR2_STATIC_LIBS && !BR2_OPTIMIZE_FAST)
 	select BR2_PACKAGE_ZLIB
 	select BR2_PACKAGE_LIBEVENT