diff --git a/support/testing/tests/package/test_tmux.py b/support/testing/tests/package/test_tmux.py
index 7eb23cac97..b31854cab3 100644
--- a/support/testing/tests/package/test_tmux.py
+++ b/support/testing/tests/package/test_tmux.py
@@ -6,7 +6,6 @@ import infra.basetest
 class TestTmux(infra.basetest.BRTest):
     config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
         """
-        BR2_GENERATE_LOCALE="en_US.UTF-8"
         BR2_PACKAGE_TMUX=y
         BR2_TARGET_ROOTFS_CPIO=y
         # BR2_TARGET_ROOTFS_TAR is not set