diff --git a/subprojects/isoinfo/meson.build b/subprojects/isoinfo/meson.build
index 6330fc4..6b122a9 100644
--- a/subprojects/isoinfo/meson.build
+++ b/subprojects/isoinfo/meson.build
@@ -15,7 +15,7 @@ add_project_arguments(
 	'-DUSE_LIBSCHILY',
 	'-DUSE_LARGEFILES',
 	'-DSCHILY_PRINT',
-	'-DUSER_NLS',
+	'-DUSE_NLS',
 	'-DINS_BASE="/opt/schily"',
 	'-DTEXT_DOMAIN="SCHILY_cdrtools"',
 	language: 'c'