diff --git a/runtime/sema/type_tags.go b/runtime/sema/type_tags.go
index 1990b0b9c9..f82e46f884 100644
--- a/runtime/sema/type_tags.go
+++ b/runtime/sema/type_tags.go
@@ -997,6 +997,11 @@ func commonSuperTypeOfHeterogeneousTypes(types []Type) Type {
 	var hasStructs, hasResources, allHashableStructs bool
 	allHashableStructs = true
 	for _, typ := range types {
+		// Ignore 'Never' type as it doesn't affect the supertype.
+		if typ == NeverType {
+			continue
+		}
+
 		isResource := typ.IsResourceType()
 		hasResources = hasResources || isResource
 		hasStructs = hasStructs || !isResource