diff --git a/Lib/test/test_syntax.py b/Lib/test/test_syntax.py
--- a/Lib/test/test_syntax.py
+++ b/Lib/test/test_syntax.py
@@ -67,6 +67,10 @@
 Traceback (most recent call last):
 SyntaxError: can't assign to literal
 
+>>> b"" = 1
+Traceback (most recent call last):
+SyntaxError: can't assign to literal
+
 >>> `1` = 1
 Traceback (most recent call last):
 SyntaxError: invalid syntax
diff --git a/Python/ast.c b/Python/ast.c
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -469,6 +469,7 @@
         case Set_kind:
         case Num_kind:
         case Str_kind:
+        case Bytes_kind:
             expr_name = "literal";
             break;
         case Ellipsis_kind: