diff --git a/man7/bootparam.7 b/man7/bootparam.7
index cd4f8962a..fcbcbdb3f 100644
--- a/man7/bootparam.7
+++ b/man7/bootparam.7
@@ -632,7 +632,7 @@ T \- device type: 1=FM, 2=SB, 3=PAS, 4=GUS, 5=MPU401, 6=SB16,
 
 aaa \- I/O address in hex.
 
-I \- interrupt line in hex (i.e 10=a, 11=b, ...)
+I \- interrupt line in hex (i.e., 10=a, 11=b, ...)
 
 d \- DMA channel.