diff --git a/hil-test/tests/spi_full_duplex.rs b/hil-test/tests/spi_full_duplex.rs
index 402921dd16..4598218fd7 100644
--- a/hil-test/tests/spi_full_duplex.rs
+++ b/hil-test/tests/spi_full_duplex.rs
@@ -1,7 +1,7 @@
 //! SPI Full Duplex test suite.
 
 //% CHIPS: esp32 esp32c2 esp32c3 esp32c6 esp32h2 esp32s2 esp32s3
-//% FEATURES: unstable
+//% FEATURES(unstable): unstable
 //% FEATURES(stable):
 
 // FIXME: add async test cases that don't rely on PCNT