diff --git a/src/preserves/preserves_schema_nim.nim b/src/preserves/preserves_schema_nim.nim
index 3adfd17..a36f876 100644
--- a/src/preserves/preserves_schema_nim.nim
+++ b/src/preserves/preserves_schema_nim.nim
@@ -597,7 +597,13 @@ proc addFields(recList: PNode; loc: Location; known: var TypeTable; pat: Pattern
   reclist
 
 proc addFields(recList: PNode; loc: Location; known: var TypeTable; entries: DictionaryEntries; parentName: string): PNode {.discardable.} =
+  var sortedEntries =
+    initOrderedTable[Preserve[void], NamedSimplePattern](entries.len)
   for key, val in entries.pairs:
+    sortedEntries[key] = val
+  sort(sortedEntries) do (x, y: (Preserve[void], NamedSimplePattern)) -> int:
+    cmp(x[0], y[0])
+  for key, val in sortedEntries.pairs:
     doAssert(key.isSymbol)
     let label = string key.symbol
     addField(recList, loc, known, val.pattern, label)
diff --git a/src/preserves/private/parse.nim b/src/preserves/private/parse.nim
index c8cd1ec..017e42a 100644
--- a/src/preserves/private/parse.nim
+++ b/src/preserves/private/parse.nim
@@ -4,7 +4,10 @@
 # this module is included in ../../preserves.nim
 
 import std/[parseutils, unicode]
-from std/sequtils import insert
+
+when isMainModule:
+  from std/sequtils import insert
+
 from std/strutils import Whitespace, parseFloat, parseHexStr, parseInt, tokenize
 import npeg
 import ../pegs