diff --git a/unix/mkerrors.sh b/unix/mkerrors.sh
index 2dd9013..c4e3e1e 100755
--- a/unix/mkerrors.sh
+++ b/unix/mkerrors.sh
@@ -594,7 +594,7 @@
 		$2 == "HID_MAX_DESCRIPTOR_SIZE" ||
 		$2 ~ /^_?HIDIOC/ ||
 		$2 ~ /^BUS_(USB|HIL|BLUETOOTH|VIRTUAL)$/ ||
-		$2 ~ /^MTD_/ ||
+		$2 ~ /^MTD/ ||
 		$2 ~ /^OTP/ ||
 		$2 ~ /^MEM/ ||
 		$2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)}
diff --git a/unix/zerrors_linux_386.go b/unix/zerrors_linux_386.go
index 33b401d..09fc559 100644
--- a/unix/zerrors_linux_386.go
+++ b/unix/zerrors_linux_386.go
@@ -137,6 +137,7 @@
 	MEMSETBADBLOCK                   = 0x40084d0c
 	MEMUNLOCK                        = 0x40084d06
 	MEMWRITEOOB                      = 0xc00c4d03
+	MTDFILEMODE                      = 0x4d13
 	NFDBITS                          = 0x20
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80
diff --git a/unix/zerrors_linux_amd64.go b/unix/zerrors_linux_amd64.go
index aec8754..75730cc 100644
--- a/unix/zerrors_linux_amd64.go
+++ b/unix/zerrors_linux_amd64.go
@@ -137,6 +137,7 @@
 	MEMSETBADBLOCK                   = 0x40084d0c
 	MEMUNLOCK                        = 0x40084d06
 	MEMWRITEOOB                      = 0xc0104d03
+	MTDFILEMODE                      = 0x4d13
 	NFDBITS                          = 0x40
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80
diff --git a/unix/zerrors_linux_arm.go b/unix/zerrors_linux_arm.go
index e96fc5c..127cf17 100644
--- a/unix/zerrors_linux_arm.go
+++ b/unix/zerrors_linux_arm.go
@@ -135,6 +135,7 @@
 	MEMSETBADBLOCK                   = 0x40084d0c
 	MEMUNLOCK                        = 0x40084d06
 	MEMWRITEOOB                      = 0xc00c4d03
+	MTDFILEMODE                      = 0x4d13
 	NFDBITS                          = 0x20
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80
diff --git a/unix/zerrors_linux_arm64.go b/unix/zerrors_linux_arm64.go
index c429c48..957ca1f 100644
--- a/unix/zerrors_linux_arm64.go
+++ b/unix/zerrors_linux_arm64.go
@@ -138,6 +138,7 @@
 	MEMSETBADBLOCK                   = 0x40084d0c
 	MEMUNLOCK                        = 0x40084d06
 	MEMWRITEOOB                      = 0xc0104d03
+	MTDFILEMODE                      = 0x4d13
 	NFDBITS                          = 0x40
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80
diff --git a/unix/zerrors_linux_mips.go b/unix/zerrors_linux_mips.go
index aaa4871..314a205 100644
--- a/unix/zerrors_linux_mips.go
+++ b/unix/zerrors_linux_mips.go
@@ -135,6 +135,7 @@
 	MEMSETBADBLOCK                   = 0x80084d0c
 	MEMUNLOCK                        = 0x80084d06
 	MEMWRITEOOB                      = 0xc00c4d03
+	MTDFILEMODE                      = 0x20004d13
 	NFDBITS                          = 0x20
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80
diff --git a/unix/zerrors_linux_mips64.go b/unix/zerrors_linux_mips64.go
index 6481641..457e8de 100644
--- a/unix/zerrors_linux_mips64.go
+++ b/unix/zerrors_linux_mips64.go
@@ -135,6 +135,7 @@
 	MEMSETBADBLOCK                   = 0x80084d0c
 	MEMUNLOCK                        = 0x80084d06
 	MEMWRITEOOB                      = 0xc0104d03
+	MTDFILEMODE                      = 0x20004d13
 	NFDBITS                          = 0x40
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80
diff --git a/unix/zerrors_linux_mips64le.go b/unix/zerrors_linux_mips64le.go
index a5a65d0..33cd28f 100644
--- a/unix/zerrors_linux_mips64le.go
+++ b/unix/zerrors_linux_mips64le.go
@@ -135,6 +135,7 @@
 	MEMSETBADBLOCK                   = 0x80084d0c
 	MEMUNLOCK                        = 0x80084d06
 	MEMWRITEOOB                      = 0xc0104d03
+	MTDFILEMODE                      = 0x20004d13
 	NFDBITS                          = 0x40
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80
diff --git a/unix/zerrors_linux_mipsle.go b/unix/zerrors_linux_mipsle.go
index 88ce266..0e085ba 100644
--- a/unix/zerrors_linux_mipsle.go
+++ b/unix/zerrors_linux_mipsle.go
@@ -135,6 +135,7 @@
 	MEMSETBADBLOCK                   = 0x80084d0c
 	MEMUNLOCK                        = 0x80084d06
 	MEMWRITEOOB                      = 0xc00c4d03
+	MTDFILEMODE                      = 0x20004d13
 	NFDBITS                          = 0x20
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80
diff --git a/unix/zerrors_linux_ppc.go b/unix/zerrors_linux_ppc.go
index 98f1ef7..1b5928c 100644
--- a/unix/zerrors_linux_ppc.go
+++ b/unix/zerrors_linux_ppc.go
@@ -135,6 +135,7 @@
 	MEMSETBADBLOCK                   = 0x80084d0c
 	MEMUNLOCK                        = 0x80084d06
 	MEMWRITEOOB                      = 0xc00c4d03
+	MTDFILEMODE                      = 0x20004d13
 	NFDBITS                          = 0x20
 	NL2                              = 0x200
 	NL3                              = 0x300
diff --git a/unix/zerrors_linux_ppc64.go b/unix/zerrors_linux_ppc64.go
index 6b29a58..f3a41d6 100644
--- a/unix/zerrors_linux_ppc64.go
+++ b/unix/zerrors_linux_ppc64.go
@@ -135,6 +135,7 @@
 	MEMSETBADBLOCK                   = 0x80084d0c
 	MEMUNLOCK                        = 0x80084d06
 	MEMWRITEOOB                      = 0xc0104d03
+	MTDFILEMODE                      = 0x20004d13
 	NFDBITS                          = 0x40
 	NL2                              = 0x200
 	NL3                              = 0x300
diff --git a/unix/zerrors_linux_ppc64le.go b/unix/zerrors_linux_ppc64le.go
index f60ca86..6a5a555 100644
--- a/unix/zerrors_linux_ppc64le.go
+++ b/unix/zerrors_linux_ppc64le.go
@@ -135,6 +135,7 @@
 	MEMSETBADBLOCK                   = 0x80084d0c
 	MEMUNLOCK                        = 0x80084d06
 	MEMWRITEOOB                      = 0xc0104d03
+	MTDFILEMODE                      = 0x20004d13
 	NFDBITS                          = 0x40
 	NL2                              = 0x200
 	NL3                              = 0x300
diff --git a/unix/zerrors_linux_riscv64.go b/unix/zerrors_linux_riscv64.go
index 86fdffe..a4da67e 100644
--- a/unix/zerrors_linux_riscv64.go
+++ b/unix/zerrors_linux_riscv64.go
@@ -135,6 +135,7 @@
 	MEMSETBADBLOCK                   = 0x40084d0c
 	MEMUNLOCK                        = 0x40084d06
 	MEMWRITEOOB                      = 0xc0104d03
+	MTDFILEMODE                      = 0x4d13
 	NFDBITS                          = 0x40
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80
diff --git a/unix/zerrors_linux_s390x.go b/unix/zerrors_linux_s390x.go
index de67791..a7028e0 100644
--- a/unix/zerrors_linux_s390x.go
+++ b/unix/zerrors_linux_s390x.go
@@ -135,6 +135,7 @@
 	MEMSETBADBLOCK                   = 0x40084d0c
 	MEMUNLOCK                        = 0x40084d06
 	MEMWRITEOOB                      = 0xc0104d03
+	MTDFILEMODE                      = 0x4d13
 	NFDBITS                          = 0x40
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80
diff --git a/unix/zerrors_linux_sparc64.go b/unix/zerrors_linux_sparc64.go
index 9ebc9d6..ed3b328 100644
--- a/unix/zerrors_linux_sparc64.go
+++ b/unix/zerrors_linux_sparc64.go
@@ -140,6 +140,7 @@
 	MEMSETBADBLOCK                   = 0x80084d0c
 	MEMUNLOCK                        = 0x80084d06
 	MEMWRITEOOB                      = 0xc0104d03
+	MTDFILEMODE                      = 0x20004d13
 	NFDBITS                          = 0x40
 	NLDLY                            = 0x100
 	NOFLSH                           = 0x80