diff --git a/Libraries/LibX86/Instruction.cpp b/Libraries/LibX86/Instruction.cpp
index e4ae2367f5f..68cca330eae 100644
--- a/Libraries/LibX86/Instruction.cpp
+++ b/Libraries/LibX86/Instruction.cpp
@@ -1760,6 +1760,10 @@ const char* register_name(SegmentRegister index)
         return "fs";
     case SegmentRegister::GS:
         return "gs";
+    case SegmentRegister::SegR6:
+        return "segr6";
+    case SegmentRegister::SegR7:
+        return "segr7";
     default:
         ASSERT_NOT_REACHED();
         return nullptr;
diff --git a/Libraries/LibX86/Instruction.h b/Libraries/LibX86/Instruction.h
index 7e65dbed530..b1bd8098ca5 100644
--- a/Libraries/LibX86/Instruction.h
+++ b/Libraries/LibX86/Instruction.h
@@ -88,6 +88,8 @@ enum class SegmentRegister {
     DS,
     FS,
     GS,
+    SegR6,
+    SegR7,
     None = 0xFF,
 };