diff --git a/Ast/src/Parser.cpp b/Ast/src/Parser.cpp
index 87af53cb..6bb1fccc 100644
--- a/Ast/src/Parser.cpp
+++ b/Ast/src/Parser.cpp
@@ -22,6 +22,7 @@ LUAU_FASTFLAGVARIABLE(LuauLeadingBarAndAmpersand2, false)
 LUAU_FASTFLAGVARIABLE(LuauNativeAttribute, false)
 LUAU_FASTFLAGVARIABLE(LuauAttributeSyntaxFunExpr, false)
 LUAU_FASTFLAGVARIABLE(LuauDeclarationExtraPropData, false)
+LUAU_FASTFLAGVARIABLE(LuauBracketStringsAreNotProps, false)
 
 namespace Luau
 {
@@ -1536,7 +1537,7 @@ AstType* Parser::parseTableType(bool inDeclarationContext)
             }
         }
 
-        if (lexer.current().type == '[' && (lexer.lookahead().type == Lexeme::RawString || lexer.lookahead().type == Lexeme::QuotedString))
+        if (!FFlag::LuauBracketStringsAreNotProps && lexer.current().type == '[' && (lexer.lookahead().type == Lexeme::RawString || lexer.lookahead().type == Lexeme::QuotedString))
         {
             const Lexeme begin = lexer.current();
             nextLexeme(); // [
diff --git a/tests/Parser.test.cpp b/tests/Parser.test.cpp
index 972d0edd..9dab1aac 100644
--- a/tests/Parser.test.cpp
+++ b/tests/Parser.test.cpp
@@ -20,6 +20,7 @@ LUAU_FASTFLAG(LuauAttributeSyntax);
 LUAU_FASTFLAG(LuauLeadingBarAndAmpersand2);
 LUAU_FASTFLAG(LuauAttributeSyntaxFunExpr);
 LUAU_FASTFLAG(LuauDeclarationExtraPropData);
+LUAU_FASTFLAG(LuauBracketStringsAreNotProps);
 
 namespace
 {
@@ -3565,5 +3566,13 @@ TEST_CASE_FIXTURE(Fixture, "mixed_leading_intersection_and_union_not_allowed")
     matchParseError("type A = | number & string & boolean", "Mixing union and intersection types is not allowed; consider wrapping in parentheses.");
 }
 
+TEST_CASE_FIXTURE(Fixture, "can_parse_string_intersection_or_union_in_table_type_indexer_successfully")
+{
+    ScopedFastFlag sff{FFlag::LuauBracketStringsAreNotProps, true};
+
+    parse(R"(type A = { ["foo" | "bar"]: baz })");
+    parse(R"(type A = { ["foo" & "bar"]: baz })");
+}
+
 
 TEST_SUITE_END();