1 files changed, 4 insertions, 1 deletions
diff --git a/wit.go b/wit.go
index 222731b..1b562a6 100644
--- a/wit.go
+++ b/wit.go
@@ -21,7 +21,10 @@ func InitWitMirrors(m *zoopb.Machine) error {
 // adds the package if the name isn't there
 // if it's newer, remove the old package and use the new one
 func AddIfNewer(all *zoopb.Packages, p *zoopb.Package) {
-	check := all.FindByPackage(p.Package)
+	check, err := all.FindByPackageName(p.Package)
+	if err != nil {
+		panic("dup package names")
+	}
 	if check == nil {
 		all.Append(p)
 		return