diff --git a/llvm/test/Object/AMDGPU/elf64-unknown.yaml b/llvm/test/Object/AMDGPU/elf64-unknown.yaml
index c82729323812..600eb7442d5a 100644
--- a/llvm/test/Object/AMDGPU/elf64-unknown.yaml
+++ b/llvm/test/Object/AMDGPU/elf64-unknown.yaml
@@ -3,7 +3,7 @@
 
 # CHECK: Format: ELF64-amdgpu
 
----
+--- !ELF
 FileHeader:
   Class:   ELFCLASS64
   Data:    ELFDATA2LSB
diff --git a/llvm/test/Object/Mips/elf-abi.yaml b/llvm/test/Object/Mips/elf-abi.yaml
index 7d8e1ceca2d5..3a7b05e01cd3 100644
--- a/llvm/test/Object/Mips/elf-abi.yaml
+++ b/llvm/test/Object/Mips/elf-abi.yaml
@@ -69,7 +69,7 @@ Symbols:
       Size:    4
 
 # o64
----
+--- !ELF
 FileHeader:
   Class:           ELFCLASS64
   Data:            ELFDATA2LSB
@@ -91,7 +91,7 @@ Symbols:
       Size:    4
 
 # eabio32
----
+--- !ELF
 FileHeader:
   Class:           ELFCLASS32
   Data:            ELFDATA2LSB
@@ -113,7 +113,7 @@ Symbols:
       Size:    4
 
 # eabi64
----
+--- !ELF
 FileHeader:
   Class:           ELFCLASS64
   Data:            ELFDATA2LSB