diff --git a/logs.go b/logs.go
index fa01456..1d84032 100644
--- a/logs.go
+++ b/logs.go
@@ -30,7 +30,11 @@ func (info *LogInfo) FullURI () string {
 }
 
 func (info *LogInfo) ParsedPublicKey () (crypto.PublicKey, error) {
-	return x509.ParsePKIXPublicKey(info.Key)
+	if info.Key != nil {
+		return x509.ParsePKIXPublicKey(info.Key)
+	} else {
+		return nil, nil
+	}
 }
 
 var DefaultLogs = []LogInfo{