diff --git a/private/parser.nim b/private/parser.nim
index 2de1014..8a233b6 100644
--- a/private/parser.nim
+++ b/private/parser.nim
@@ -472,9 +472,8 @@ proc parse*(parser: YamlSequentialParser, s: Stream): YamlStream =
                     assert level.mode == mImplicitBlockMapKey
                 leaveMoreIndentedLevels()
                 case level.mode
-                of mUnknown, mImplicitBlockMapKey, mImplicitBlockMapValue,
-                             mExplicitBlockMapKey, mExplicitBlockMapValue,
-                             mBlockSequenceItem:
+                of mUnknown, mImplicitBlockMapKey, mBlockMapValue,
+                             mExplicitBlockMapKey, mBlockSequenceItem:
                     state = ypBlockAfterAlias
                 else:
                     raiseError("Unexpected alias")
@@ -1012,4 +1011,4 @@ proc parse*(parser: YamlSequentialParser, s: Stream): YamlStream =
                 yieldUnexpectedToken("document end")
         token = nextToken(lex)
         if token == tError:
-            raiseError("Lexer error: " & lex.content)
\ No newline at end of file
+            raiseError("Lexer error: " & lex.content)