1 files changed, 1 insertions, 1 deletions

diff --git a/src/screenshotr.c b/src/screenshotr.c
index e2bc979..b538232 100644
--- a/src/screenshotr.c
+++ b/src/screenshotr.c
@@ -76,7 +76,7 @@ static screenshotr_error_t screenshotr_error(device_link_service_error_t err)
 screenshotr_error_t screenshotr_client_new(idevice_t device, lockdownd_service_descriptor_t service,
                                            screenshotr_client_t * client)
 {
-        if (!device || service->port == 0 || !client || *client)
+        if (!device || !service || service->port == 0 || !client || *client)
                 return SCREENSHOTR_E_INVALID_ARG;
 
         device_link_service_client_t dlclient = NULL;