diff --git a/llvm/include/llvm/BinaryFormat/ELF.h b/llvm/include/llvm/BinaryFormat/ELF.h
index 81cdd39afc6b..f17ba75e3efa 100644
--- a/llvm/include/llvm/BinaryFormat/ELF.h
+++ b/llvm/include/llvm/BinaryFormat/ELF.h
@@ -1464,6 +1464,7 @@ enum {
   PT_OPENBSD_RANDOMIZE = 0x65a3dbe6, // Fill with random data.
   PT_OPENBSD_WXNEEDED = 0x65a3dbe7,  // Program does W^X violations.
   PT_OPENBSD_NOBTCFI = 0x65a3dbe8,   // Do not enforce branch target CFI.
+  PT_OPENBSD_SYSCALLS = 0x65a3dbe9,  // System call sites.
   PT_OPENBSD_BOOTDATA = 0x65a41be6,  // Section for boot arguments.
 
   // ARM program header types.