diff --git a/src/unicode/lut.zig b/src/unicode/lut.zig
index 84d51792d..9e6c2be16 100644
--- a/src/unicode/lut.zig
+++ b/src/unicode/lut.zig
@@ -177,3 +177,7 @@ pub fn Tables(comptime Elem: type) type {
         }
     };
 }
+
+test {
+    std.testing.refAllDecls(@This());
+}
diff --git a/src/unicode/props.zig b/src/unicode/props.zig
index 049f42ebd..a14b0c448 100644
--- a/src/unicode/props.zig
+++ b/src/unicode/props.zig
@@ -222,3 +222,8 @@ pub fn main() !void {
     //     t.stage3.len,
     // });
 }
+
+test {
+    _ = table;
+    _ = Properties;
+}