diff --git a/src/preserves.nim b/src/preserves.nim
index 6d18dfb..a499610 100644
--- a/src/preserves.nim
+++ b/src/preserves.nim
@@ -175,11 +175,20 @@ proc hash*(pr: Preserve): Hash =
   !$h
 
 proc `[]`*(pr: Preserve; i: int): Preserve =
-  ## Select an indexed value from `pr`.
+  ## Select an indexed value from ``pr``.
   ## Only valid for records and sequences.
   case pr.kind
   of pkRecord: pr.record[i]
   of pkSequence: pr.sequence[i]
+  else:
+    raise newException(ValueError, "`Preserves value is not indexable")
+
+proc `[]`*(pr, key: Preserve): Preserve =
+  ## Select a dictionary value from ``pr``.
+  if pr.kind == pkDictionary:
+    for (k, v) in pr.dict:
+      if key == k: return v
+    raise newException(KeyError, "Key not in Preserves dictionary")
   else:
     raise newException(ValueError, "`[]` is not valid for " & $pr.kind)