diff --git a/src/can2040.c b/src/can2040.c
index f16cebf..4e5108c 100644
--- a/src/can2040.c
+++ b/src/can2040.c
@@ -173,7 +173,7 @@ pio_match_setup(struct can2040 *cd)
     sm->shiftctrl = 0;
     sm->instr = 0xe040; // set y, 0
     sm->instr = 0xa0e2; // mov osr, y
-    sm->instr = 0xa02a, // mov x, !y
+    sm->instr = 0xa02a; // mov x, !y
     sm->instr = can2040_offset_match_load_next; // jmp match_load_next
 }