--- /sys/src/9k/port/proc.c
+++ /sys/src/9k/port/proc.c
@@ -1240,7 +1240,7 @@ procdump(void)
 
 /*
  *  wait till all processes have flushed their mmu
- *  state about segement s
+ *  state about segment s
  */
 void
 procflushseg(Segment *s)