doc/download.texi |  4 ++++
 doc/news.ru.texi  |  9 +++++++++
 doc/news.texi     |  9 +++++++++
 src/ctx.go        | 11 -----------
 src/df.go         | 20 ++++++++++++++++++++
 src/df_netbsd.go  | 20 ++++++++++++++++++++
 src/nncp.go       |  2 +-

diff --git a/doc/download.texi b/doc/download.texi
index bfa858c80968aa17aa7ed49851822477a6e302b1d8bbe43256c5c061404f45f4..713d1868faf28843c4ce180c325b8be46fbc6f907e8455b48dcebeadbff186fa 100644
--- a/doc/download.texi
+++ b/doc/download.texi
@@ -28,6 +28,10 @@
 @multitable {XXXXX} {XXXX-XX-XX} {XXXX KiB} {link sign} {xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx}
 @headitem Version @tab Date @tab Size @tab Tarball @tab SHA256 checksum
 
+@item @ref{Release 7_5_0, 7.5.0} @tab 2021-07-28 @tab 1151 KiB
+@tab @url{download/nncp-7.5.0.tar.xz, link} @url{download/nncp-7.5.0.tar.xz.sig, sign}
+@tab @code{14D92DC5 B8164EE4 4926D7AF 46DA9F23 0C8F6207 350CC747 6DB5CDFB 8E7C3FE4}
+
 @item @ref{Release 7_4_0, 7.4.0} @tab 2021-07-19 @tab 1153 KiB
 @tab @url{download/nncp-7.4.0.tar.xz, link} @url{download/nncp-7.4.0.tar.xz.sig, sign}
 @tab @code{F7499FBF B0658054 F2732722 D54FE31E A0F105FD 9970B5BB 6413A9CC 065CB0EB}
diff --git a/doc/news.ru.texi b/doc/news.ru.texi
index ff437cc105fcf1a731c0f5078841315e72d59a83786b5d1351b44d8c0f37d6c8..a06db08318180731c1e764b53ea5658fbd5649bd39105a254a84e99c688d1537 100644
--- a/doc/news.ru.texi
+++ b/doc/news.ru.texi
@@ -1,6 +1,15 @@
 @node Новости
 @section Новости
 
+@node Релиз 7.5.1
+@subsection Релиз 7.5.1
+@itemize
+
+@item
+NNCP собирается на NetBSD.
+
+@end itemize
+
 @node Релиз 7.5.0
 @subsection Релиз 7.5.0
 @itemize
diff --git a/doc/news.texi b/doc/news.texi
index 5e19c241ab6f45cda65aa09bce70aba0f8df46669ada1269b874aa8b932a1b7d..bd70bf057247fb649168710247381da727d9751d1e5d0f4be77a42b79e0d2ed2 100644
--- a/doc/news.texi
+++ b/doc/news.texi
@@ -3,6 +3,15 @@ @unnumbered News
 
 See also this page @ref{Новости, on russian}.
 
+@node Release 7_5_1
+@section Release 7.5.1
+@itemize
+
+@item
+NNCP builds on NetBSD.
+
+@end itemize
+
 @node Release 7_5_0
 @section Release 7.5.0
 @itemize
diff --git a/src/ctx.go b/src/ctx.go
index 00330712ddca09aab1da09fb1688457733fcc85bfd38f537b660b051b43a651f..f85ce1a125561eaa1c406f730285e805db4bec7fd39c032b7744f2249d214d35 100644
--- a/src/ctx.go
+++ b/src/ctx.go
@@ -21,13 +21,10 @@ import (
 	"errors"
 	"fmt"
 	"io/ioutil"
-	"log"
 	"os"
 	"path/filepath"
 
 	"syscall"
-
-	"golang.org/x/sys/unix"
 )
 
 type Ctx struct {
@@ -147,14 +144,6 @@ 	}
 	ctx.Quiet = quiet
 	ctx.Debug = debug
 	return ctx, nil
-}
-
-func (ctx *Ctx) IsEnoughSpace(want int64) bool {
-	var s unix.Statfs_t
-	if err := unix.Statfs(ctx.Spool, &s); err != nil {
-		log.Fatalln("Can not stat spool:", err)
-	}
-	return int64(s.Bavail)*int64(s.Bsize) > want
 }
 
 func (ctx *Ctx) Umask() {
diff --git a/src/df.go b/src/df.go
new file mode 100644
index 0000000000000000000000000000000000000000..61e2a5c7efd1b8853754bd2f5e33d38bc86d9e952f6a80ea3020fd7bf87a5526
--- /dev/null
+++ b/src/df.go
@@ -0,0 +1,20 @@
+// +build !netbsd
+
+// NNCP -- Node to Node copy, utilities for store-and-forward data exchange
+// Copyright (C) 2016-2021 Sergey Matveev <stargrave@stargrave.org>
+
+package nncp
+
+import (
+	"log"
+
+	"golang.org/x/sys/unix"
+)
+
+func (ctx *Ctx) IsEnoughSpace(want int64) bool {
+	var s unix.Statfs_t
+	if err := unix.Statfs(ctx.Spool, &s); err != nil {
+		log.Fatalln("Can not stat spool:", err)
+	}
+	return int64(s.Bavail)*int64(s.Bsize) > want
+}
diff --git a/src/df_netbsd.go b/src/df_netbsd.go
new file mode 100644
index 0000000000000000000000000000000000000000..7bf4fa2dc2da96bea6c7e53eb292d3734c1194a491b70303d80bf37fe1b870c3
--- /dev/null
+++ b/src/df_netbsd.go
@@ -0,0 +1,20 @@
+// +build netbsd
+
+// NNCP -- Node to Node copy, utilities for store-and-forward data exchange
+// Copyright (C) 2016-2021 Sergey Matveev <stargrave@stargrave.org>
+
+package nncp
+
+import (
+	"log"
+
+	"golang.org/x/sys/unix"
+)
+
+func (ctx *Ctx) IsEnoughSpace(want int64) bool {
+	var s unix.Statvfs_t
+	if err := unix.Statvfs(ctx.Spool, &s); err != nil {
+		log.Fatalln("Can not stat spool:", err)
+	}
+	return int64(s.Bavail)*int64(s.Frsize) > want
+}
diff --git a/src/nncp.go b/src/nncp.go
index e8091f64f48a356f9cdeaafccd909d42bc9f79903788e97daf03c099ea1e6ba4..b0b272bcdb9fac5b9720e34379d396cdba2cef89b89b55254864ee164e0827f8 100644
--- a/src/nncp.go
+++ b/src/nncp.go
@@ -40,7 +40,7 @@
 const Base32Encoded32Len = 52
 
 var (
-	Version string = "7.5.0"
+	Version string = "7.5.1"
 
 	Base32Codec *base32.Encoding = base32.StdEncoding.WithPadding(base32.NoPadding)
 )