diff --git a/distribution/lib/Standard/Base/0.0.0-dev/src/Data/Json.enso b/distribution/lib/Standard/Base/0.0.0-dev/src/Data/Json.enso
index 4e67a357738e..1381ff9fb7c4 100644
--- a/distribution/lib/Standard/Base/0.0.0-dev/src/Data/Json.enso
+++ b/distribution/lib/Standard/Base/0.0.0-dev/src/Data/Json.enso
@@ -173,7 +173,7 @@ type JS_Object
         mapper = ObjectMapper.new
         new_object = mapper.createObjectNode
         keys = Vector.build builder->
-            pairs.map on_problems=No_Wrap pair->
+            pairs.map on_problems=No_Wrap.Value pair->
                 case pair.first of
                     text : Text ->
                         ## Ensure that any dataflow errors that could be stored in `pair.second` are propagated.
diff --git a/distribution/lib/Standard/Base/0.0.0-dev/src/Network/HTTP/Header.enso b/distribution/lib/Standard/Base/0.0.0-dev/src/Network/HTTP/Header.enso
index c8357c65bfce..e0b3241895bc 100644
--- a/distribution/lib/Standard/Base/0.0.0-dev/src/Network/HTTP/Header.enso
+++ b/distribution/lib/Standard/Base/0.0.0-dev/src/Network/HTTP/Header.enso
@@ -30,7 +30,7 @@ type Header
        `Header` values.
     unify_vector : Vector (Header | Pair Text Text | Vector) -> Vector Header
     unify_vector headers:Vector =
-        headers . map on_problems=No_Wrap h-> case h of
+        headers . map on_problems=No_Wrap.Value h-> case h of
             _ : Vector -> Header.new (h.at 0) (h.at 1)
             _ : Pair -> Header.new (h.at 0) (h.at 1)
             _ : Function -> h:Header