diff --git a/build.zig b/build.zig
index 4850027a5..c1b3c27d2 100644
--- a/build.zig
+++ b/build.zig
@@ -625,7 +625,7 @@ fn addDeps(
     const fontconfig_dep = b.dependency("fontconfig", .{
         .target = step.target,
         .optimize = step.optimize,
-        .iconv_win_enabled = iconv_win_enabled,
+        .@"enable-iconv-win" = iconv_win_enabled,
     });
     const freetype_dep = b.dependency("freetype", .{
         .target = step.target,