diff --git a/cmd/zstream/zstream_decompress.c b/cmd/zstream/zstream_decompress.c
index 31d4b2d369..e5527777bc 100644
--- a/cmd/zstream/zstream_decompress.c
+++ b/cmd/zstream/zstream_decompress.c
@@ -115,7 +115,9 @@ zstream_do_decompress(int argc, char *argv[])
 		if (errno || *end != '\0')
 			errx(1, "invalid value for offset");
 		if (argv[i]) {
-			if (0 == strcmp("lz4", argv[i]))
+			if (0 == strcmp("off", argv[i]))
+				type = ZIO_COMPRESS_OFF;
+			else if (0 == strcmp("lz4", argv[i]))
 				type = ZIO_COMPRESS_LZ4;
 			else if (0 == strcmp("lzjb", argv[i]))
 				type = ZIO_COMPRESS_LZJB;
@@ -127,8 +129,8 @@ zstream_do_decompress(int argc, char *argv[])
 				type = ZIO_COMPRESS_ZSTD;
 			else {
 				fprintf(stderr, "Invalid compression type %s.\n"
-				    "Supported types are lz4, lzjb, gzip, zle, "
-				    "and zstd\n",
+				    "Supported types are off, lz4, lzjb, gzip, "
+				    "zle, and zstd\n",
 				    argv[i]);
 				exit(2);
 			}
@@ -240,6 +242,9 @@ zstream_do_decompress(int argc, char *argv[])
 			if (p != NULL) {
 				zio_decompress_func_t *xfunc = NULL;
 				switch ((enum zio_compress)(intptr_t)p->data) {
+				case ZIO_COMPRESS_OFF:
+					xfunc = NULL;
+					break;
 				case ZIO_COMPRESS_LZJB:
 					xfunc = lzjb_decompress;
 					break;
@@ -258,7 +263,6 @@ zstream_do_decompress(int argc, char *argv[])
 				default:
 					assert(B_FALSE);
 				}
-				assert(xfunc != NULL);
 
 
 				/*
@@ -266,12 +270,27 @@ zstream_do_decompress(int argc, char *argv[])
 				 */
 				char *lzbuf = safe_calloc(payload_size);
 				(void) sfread(lzbuf, payload_size, stdin);
-				if (0 != xfunc(lzbuf, buf,
+				if (xfunc == NULL) {
+					memcpy(buf, lzbuf, payload_size);
+					drrw->drr_compressiontype =
+					    ZIO_COMPRESS_OFF;
+					if (verbose)
+						fprintf(stderr, "Resetting "
+						    "compression type to off "
+						    "for ino %llu offset "
+						    "%llu\n",
+						    (u_longlong_t)
+						    drrw->drr_object,
+						    (u_longlong_t)
+						    drrw->drr_offset);
+				} else if (0 != xfunc(lzbuf, buf,
 				    payload_size, payload_size, 0)) {
 					/*
 					 * The block must not be compressed,
-					 * possibly because it gets written
-					 * multiple times in this stream.
+					 * at least not with this compression
+					 * type, possibly because it gets
+					 * written multiple times in this
+					 * stream.
 					 */
 					warnx("decompression failed for "
 					    "ino %llu offset %llu",
@@ -279,11 +298,16 @@ zstream_do_decompress(int argc, char *argv[])
 					    (u_longlong_t)drrw->drr_offset);
 					memcpy(buf, lzbuf, payload_size);
 				} else if (verbose) {
+					drrw->drr_compressiontype =
+					    ZIO_COMPRESS_OFF;
 					fprintf(stderr, "successfully "
 					    "decompressed ino %llu "
 					    "offset %llu\n",
 					    (u_longlong_t)drrw->drr_object,
 					    (u_longlong_t)drrw->drr_offset);
+				} else {
+					drrw->drr_compressiontype =
+					    ZIO_COMPRESS_OFF;
 				}
 				free(lzbuf);
 			} else {
diff --git a/man/man8/zstream.8 b/man/man8/zstream.8
index dd53420002..bfe7ac3f65 100644
--- a/man/man8/zstream.8
+++ b/man/man8/zstream.8
@@ -20,7 +20,7 @@
 .\"
 .\" Copyright (c) 2020 by Delphix. All rights reserved.
 .\"
-.Dd March 25, 2022
+.Dd October 4, 2022
 .Dt ZSTREAM 8
 .Os
 .
@@ -96,6 +96,7 @@ Specify the object number and byte offset of each record that you wish to
 decompress.
 Optionally specify the compression type.
 Valid compression types include
+.Sy off ,
 .Sy gzip ,
 .Sy lz4 ,
 .Sy lzjb ,
@@ -108,6 +109,11 @@ Every record for that object beginning at that offset will be decompressed, if
 possible.
 It may not be possible, because the record may be corrupted in some but not
 all of the stream's snapshots.
+Specifying a compression type of
+.Sy off
+will change the stream's metadata accordingly, without attempting decompression.
+This can be useful if the record is already uncompressed but the metadata
+insists otherwise.
 The repaired stream will be written to standard output.
 .Bl -tag -width "-v"
 .It Fl v