diff --git a/layouts/partials/json-schema/resolve-allof.html b/layouts/partials/json-schema/resolve-allof.html
index b8b81e7d..61a03c3f 100644
--- a/layouts/partials/json-schema/resolve-allof.html
+++ b/layouts/partials/json-schema/resolve-allof.html
@@ -24,6 +24,14 @@
 
     {{ range $original }}
         {{ $resolved := partial "json-schema/resolve-allof" . }}
+        {{ if reflect.IsSlice $resolved }}
+          {{/*
+              If $resolved is a slice, `append` will add the items of $resolved to
+              $ret, but we want to add $resolved itself to $ret, so we always wrap
+              it into another slice.
+          */}}
+          {{ $resolved = slice $resolved }}
+        {{ end }}
         {{ $ret = $ret | append $resolved }}
     {{ end }}
 {{ else if reflect.IsMap $original }}
diff --git a/layouts/partials/json-schema/resolve-refs.html b/layouts/partials/json-schema/resolve-refs.html
index 9a36e413..7479498a 100644
--- a/layouts/partials/json-schema/resolve-refs.html
+++ b/layouts/partials/json-schema/resolve-refs.html
@@ -69,6 +69,14 @@
 
     {{ range $schema }}
         {{ $resolved := partial "json-schema/resolve-refs" (dict "schema" . "path" $path) }}
+        {{ if reflect.IsSlice $resolved }}
+            {{/*
+                If $resolved is a slice, `append` will add the items of $resolved to
+                $result_slice, but we want to add $resolved itself to $result_slice,
+                so we wrap it into another slice.
+            */}}
+            {{ $resolved = slice $resolved }}
+        {{ end }}
         {{ $result_slice = $result_slice | append $resolved }}
     {{ end }}