diff --git a/man2/seccomp.2 b/man2/seccomp.2
index a408c0a81..571944bdc 100644
--- a/man2/seccomp.2
+++ b/man2/seccomp.2
@@ -257,7 +257,7 @@ struct seccomp_data {
 .in
 
 Because the numbers of system calls vary between architectures and
-some architectures (e.g., X86-64) allow user-space code to use
+some architectures (e.g., x86-64) allow user-space code to use
 the calling conventions of multiple architectures, it is usually
 necessary to verify the value of the
 .IR arch
@@ -274,7 +274,7 @@ a blacklist bypass.
 The
 .IR arch
 field is not unique for all calling conventions.
-The X86-64 ABI and the X32 ABI both use
+The x86-64 ABI and the x32 ABI both use
 .BR AUDIT_ARCH_X86_64
 as
 .IR arch ,
@@ -283,7 +283,7 @@ Instead, the mask
 .BR __X32_SYSCALL_BIT
 is used on the system call number to tell the two ABIs apart.
 This means that in order to create a seccomp-based
-blacklist for system calls performed through the X86-64 ABI,
+blacklist for system calls performed through the x86-64 ABI,
 it is necessary to not only check that
 .IR arch
 equals
@@ -298,10 +298,10 @@ When checking values from
 against a blacklist, keep in mind that arguments are often
 silently truncated before being processed, but after the seccomp check.
 For example, this happens if the i386 ABI is used on an
-X86-64 kernel: Although the kernel will normally not look beyond
+x86-64 kernel: Although the kernel will normally not look beyond
 the 32 lowest bits of the arguments, the values of the full
 64-bit registers will be present in the seccomp data.
-A less surprising example is that if the X86-64 ABI is used to perform
+A less surprising example is that if the x86-64 ABI is used to perform
 a system call that takes an argument of type
 .IR int ,
 the more-significant half of the argument register is ignored by
@@ -678,7 +678,7 @@ static int
 install_filter(int syscall_nr, int t_arch, int f_errno)
 {
     unsigned int upper_nr_limit = 0xffffffff;
-    /* assume that AUDIT_ARCH_X86_64 means the normal X86-64 ABI */
+    /* assume that AUDIT_ARCH_X86_64 means the normal x86-64 ABI */
     if (t_arch == AUDIT_ARCH_X86_64)
         upper_nr_limit = X32_SYSCALL_BIT - 1;
 
@@ -697,7 +697,7 @@ install_filter(int syscall_nr, int t_arch, int f_errno)
         BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
                  (offsetof(struct seccomp_data, nr))),
 
-        /* [3] Check ABI - only needed for X86-64 in blacklist use
+        /* [3] Check ABI - only needed for x86-64 in blacklist use
                cases.  Use JGT instead of checking against the bit
                mask to avoid having to reload the syscall number. */
         BPF_JUMP(BPF_JMP | BPF_JGT | BPF_K, upper_nr_limit, 3, 0),