diff --git a/unix/linux/mksysnum.go b/unix/linux/mksysnum.go
index 2b5a6bf7..612b60e9 100644
--- a/unix/linux/mksysnum.go
+++ b/unix/linux/mksysnum.go
@@ -137,9 +137,6 @@ func main() {
 		if !bytes.Contains(cmd, []byte("#define __NR_arch_specific_syscall")) {
 			cmd = append(cmd, []byte("#define __NR_arch_specific_syscall 244\n")...)
 		}
-		if !bytes.Contains(cmd, []byte("#define __NR_fstatat")) {
-			cmd = append(cmd, []byte("#define __NR_fstatat 79\n")...)
-		}
 	}
 
 	s := bufio.NewScanner(strings.NewReader(string(cmd)))
diff --git a/unix/syscall_linux_arm64.go b/unix/syscall_linux_arm64.go
index cf2ee6c7..745e5c7e 100644
--- a/unix/syscall_linux_arm64.go
+++ b/unix/syscall_linux_arm64.go
@@ -182,3 +182,5 @@ func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error
 	}
 	return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
 }
+
+const SYS_FSTATAT = SYS_NEWFSTATAT
diff --git a/unix/syscall_linux_loong64.go b/unix/syscall_linux_loong64.go
index 3d0e9845..dd2262a4 100644
--- a/unix/syscall_linux_loong64.go
+++ b/unix/syscall_linux_loong64.go
@@ -214,3 +214,5 @@ func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error
 	}
 	return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
 }
+
+const SYS_FSTATAT = SYS_NEWFSTATAT
diff --git a/unix/syscall_linux_riscv64.go b/unix/syscall_linux_riscv64.go
index 6f5a2889..8cf3670b 100644
--- a/unix/syscall_linux_riscv64.go
+++ b/unix/syscall_linux_riscv64.go
@@ -187,3 +187,5 @@ func RISCVHWProbe(pairs []RISCVHWProbePairs, set *CPUSet, flags uint) (err error
 	}
 	return riscvHWProbe(pairs, setSize, set, flags)
 }
+
+const SYS_FSTATAT = SYS_NEWFSTATAT
diff --git a/unix/zsysnum_linux_arm64.go b/unix/zsysnum_linux_arm64.go
index d5cd55cf..1893e2fe 100644
--- a/unix/zsysnum_linux_arm64.go
+++ b/unix/zsysnum_linux_arm64.go
@@ -86,7 +86,6 @@ const (
 	SYS_TEE                     = 77
 	SYS_READLINKAT              = 78
 	SYS_NEWFSTATAT              = 79
-	SYS_FSTATAT                 = 79
 	SYS_FSTAT                   = 80
 	SYS_SYNC                    = 81
 	SYS_FSYNC                   = 82
diff --git a/unix/zsysnum_linux_loong64.go b/unix/zsysnum_linux_loong64.go
index 7bcf38d5..16a4017d 100644
--- a/unix/zsysnum_linux_loong64.go
+++ b/unix/zsysnum_linux_loong64.go
@@ -85,7 +85,6 @@ const (
 	SYS_TEE                     = 77
 	SYS_READLINKAT              = 78
 	SYS_NEWFSTATAT              = 79
-	SYS_FSTATAT                 = 79
 	SYS_FSTAT                   = 80
 	SYS_SYNC                    = 81
 	SYS_FSYNC                   = 82
diff --git a/unix/zsysnum_linux_riscv64.go b/unix/zsysnum_linux_riscv64.go
index e34347f9..a5459e76 100644
--- a/unix/zsysnum_linux_riscv64.go
+++ b/unix/zsysnum_linux_riscv64.go
@@ -85,7 +85,6 @@ const (
 	SYS_TEE                     = 77
 	SYS_READLINKAT              = 78
 	SYS_NEWFSTATAT              = 79
-	SYS_FSTATAT                 = 79
 	SYS_FSTAT                   = 80
 	SYS_SYNC                    = 81
 	SYS_FSYNC                   = 82