--- misc/mke2fs.8.in
+++ misc/mke2fs.8.in
@@ -30,6 +30,10 @@
 .I bytes-per-inode
 ]
 [
+.B \-I
+.I inode-size
+]
+[
 .B \-j
 ]
 [
@@ -217,7 +221,14 @@
 be smaller than the blocksize of the filesystem, since then too many
 inodes will be made.  Be warned that is not possible to expand the number 
 of inodes on a filesystem after it is created, so be careful deciding the
-correct value for this parameter. 
+correct value for this parameter.
+.TP
+.BI \-I " inode-size"
+Specify the inode size. The default inode-size used by
+.B mke2fs
+is 128. 
+.I inode-size
+can be 128, 256, 512 or 1024. This value generally shouldn't be changed!
 .TP 
 .B \-j
 Create the filesystem with an ext3 journal.  If the
--- misc/mke2fs.c
+++ misc/mke2fs.c
@@ -94,7 +94,7 @@
 static void usage(void)
 {
 	fprintf(stderr, _("Usage: %s [-c|-t|-l filename] [-b block-size] "
-	"[-f fragment-size]\n\t[-i bytes-per-inode] [-j] [-J journal-options]"
+	"[-f fragment-size]\n\t[-i bytes-per-inode] [-I inode-size] [-j] [-J journal-options]"
 	" [-N number-of-inodes]\n\t[-m reserved-blocks-percentage] "
 	"[-o creator-os] [-g blocks-per-group]\n\t[-L volume-label] "
 	"[-M last-mounted-directory] [-O feature[,...]]\n\t"