diff --git a/man5/proc.5 b/man5/proc.5
index f6bfde6d6..8e08183f4 100644
--- a/man5/proc.5
+++ b/man5/proc.5
@@ -1660,7 +1660,7 @@ A system-wide limit on the maximum number of semaphore identifiers.
 .I /proc/sys/kernel/sg-big-buff
 This file
 shows the size of the generic SCSI device (sg) buffer.
-You can't tune it just yet, but you could change it on
+You can't tune it just yet, but you could change it at
 compile time by editing
 .I include/scsi/sg.h
 and changing