diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5
index 888c70730..f4045fd3e 100644
--- a/man/man5/zfs-module-parameters.5
+++ b/man/man5/zfs-module-parameters.5
@@ -2995,7 +2995,7 @@ Use \fB1\fR for yes and \fB0\fR for no (default).
 .sp
 .ne 2
 .na
-\fBzfs_read_chunk_size\fR (long)
+\fBzfs_vnops_read_chunk_size\fR (long)
 .ad
 .RS 12n
 Bytes to read per chunk
@@ -3998,19 +3998,6 @@ the zio pipeline is looping indefinitely.
 Default value: \fB0\fR.
 .RE
 
-.sp
-.ne 2
-.na
-\fBzio_decompress_fail_fraction\fR (int)
-.ad
-.RS 12n
-If non-zero, this value represents the denominator of the probability that zfs
-should induce a decompression failure. For instance, for a 5% decompression
-failure rate, this value should be set to 20.
-.sp
-Default value: \fB0\fR.
-.RE
-
 .sp
 .ne 2
 .na