diff --git a/usr.bin/truss/syscalls.c b/usr.bin/truss/syscalls.c
index e06a818b721f..e471608f16d1 100644
--- a/usr.bin/truss/syscalls.c
+++ b/usr.bin/truss/syscalls.c
@@ -905,7 +905,7 @@ print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), FILE *fp,
 
 #ifndef __LP64__
 /*
- * Add argument padding to subsequent system calls afater a Quad
+ * Add argument padding to subsequent system calls after Quad
  * syscall arguments as needed.  This used to be done by hand in the
  * decoded_syscalls table which was ugly and error prone.  It is
  * simpler to do the fixup of offsets at initalization time than when