diff --git a/preserves.nimble b/preserves.nimble
index ca6b148..ccf7632 100644
--- a/preserves.nimble
+++ b/preserves.nimble
@@ -1,6 +1,6 @@
 # Package
 
-version = "20230322"
+version = "20230329"
 author        = "Emery Hemingway"
 description   = "data model and serialization format"
 license       = "Unlicense"
diff --git a/src/Tupfile b/src/Tupfile
index 2e10045..d747b79 100644
--- a/src/Tupfile
+++ b/src/Tupfile
@@ -1,2 +1,3 @@
 include_rules
 : preserves.nim |> !nim_run |>
+: preserves.nim |> !nim_check |>
diff --git a/src/preserves.nim b/src/preserves.nim
index ca62719..b9478de 100644
--- a/src/preserves.nim
+++ b/src/preserves.nim
@@ -1378,7 +1378,7 @@ proc writeText*[E](stream: Stream; pr: Preserve[E]) =
     write(stream, '}')
   of pkEmbedded:
     write(stream, "#!")
-    when compiles($pr.embed):
+    when compiles($pr.embed) and not E is void:
       write(stream, $pr.embed)
     else:
       write(stream, "…")