diff --git a/Marlin/src/module/stepper/trinamic.cpp b/Marlin/src/module/stepper/trinamic.cpp
index 76373515569ed..cae38867f34ec 100644
--- a/Marlin/src/module/stepper/trinamic.cpp
+++ b/Marlin/src/module/stepper/trinamic.cpp
@@ -1057,10 +1057,7 @@ void reset_trinamic_drivers() {
 #if ANY_AXIS_HAS(SW_SERIAL)
   struct SanitySwSerialDetails { int32_t txpin; int32_t rxpin; uint32_t address; };
   #define TMC_SW_DETAIL_ARGS(A) TERN(A##_HAS_SW_SERIAL, A##_SERIAL_TX_PIN, -1), TERN(A##_HAS_SW_SERIAL, A##_SERIAL_RX_PIN, -1), TERN0(A##_HAS_SW_SERIAL, A##_SLAVE_ADDRESS)
-  #define TMC_SW_DETAIL(A) TMC_SW_DETAIL_ARGS(A),
-  constexpr SanitySwSerialDetails sanity_tmc_sw_details[] = {
-    MAP(TMC_SW_DETAIL, ALL_AXIS_NAMES)
-  };
+  constexpr SanitySwSerialDetails sanity_tmc_sw_details[] = { MAPLIST(TMC_SW_DETAIL_ARGS, ALL_AXIS_NAMES) };
 
   constexpr bool sc_sw_done(size_t start, size_t end) { return start == end; }
   constexpr bool sc_sw_skip(int32_t txpin) { return txpin < 0; }