diff --git a/include/llvm/Support/ELF.h b/include/llvm/Support/ELF.h
index 33975688c24..9ff84bda564 100644
--- a/include/llvm/Support/ELF.h
+++ b/include/llvm/Support/ELF.h
@@ -1029,7 +1029,10 @@ enum {
   PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM = 0x60000000,
   PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT   = 0x60000001,
   PT_AMDGPU_HSA_LOAD_READONLY_AGENT = 0x60000002,
-  PT_AMDGPU_HSA_LOAD_CODE_AGENT     = 0x60000003
+  PT_AMDGPU_HSA_LOAD_CODE_AGENT     = 0x60000003,
+
+  // WebAssembly program header types.
+  PT_WEBASSEMBLY_FUNCTIONS = PT_LOPROC + 0, // Function definitions.
 };
 
 // Segment flag bits.