diff --git a/llvm/include/llvm/Support/YAMLTraits.h b/llvm/include/llvm/Support/YAMLTraits.h
--- a/llvm/include/llvm/Support/YAMLTraits.h
+++ b/llvm/include/llvm/Support/YAMLTraits.h
@@ -1629,7 +1629,9 @@
     bool IsNone = false;
     if (!outputting())
       if (auto *Node = dyn_cast<ScalarNode>(((Input *)this)->getCurrentNode()))
-        IsNone = Node->getRawValue() == "<none>";
+        // We use rtrim to ignore possible white spaces that might exist when a
+        // comment is present on the same line.
+        IsNone = Node->getRawValue().rtrim(' ') == "<none>";
 
     if (IsNone)
       Val = DefaultValue;
diff --git a/llvm/test/tools/yaml2obj/ELF/none-value.yaml b/llvm/test/tools/yaml2obj/ELF/none-value.yaml
--- a/llvm/test/tools/yaml2obj/ELF/none-value.yaml
+++ b/llvm/test/tools/yaml2obj/ELF/none-value.yaml
@@ -21,6 +21,7 @@
 Sections:
   - Name:         .bar
     Type:         SHT_PROGBITS
+    Flags:        [[TEST=<none>]] ## Comment
     Offset:       [[TEST=<none>]]
     Address:      [[TEST=<none>]]
     Content:      [[TEST=<none>]]