diff --git a/src/pam/meson.build b/src/pam/meson.build
index 45bd614..add0595 100644
--- a/src/pam/meson.build
+++ b/src/pam/meson.build
@@ -4,6 +4,6 @@ inih = subproject('inih')
 inih_cpp = inih.get_variable('INIReader_dep')
 
 libpam = meson.get_compiler('c').find_library('pam')
-boost = dependency('boost')
+boost = dependency('boost', modules: ['locale'])
 threads = dependency('threads')
 shared_library('pam_howdy', 'main.cc', dependencies: [boost, libpam, inih_cpp, threads], install: true, install_dir: '/lib/security/')