1 files changed, 1 insertions, 1 deletions

diff --git a/src/ideviceinstaller.c b/src/ideviceinstaller.c
index 0cf2b18..642d547 100644
--- a/src/ideviceinstaller.c
+++ b/src/ideviceinstaller.c
@@ -146,7 +146,7 @@ static void status_cb(const char *operation, plist_t status)
                         free(status_msg);
                 }
         } else {
-                printf("%s: called with invalid data!\n", __func__);
+                fprintf(stderr, "ERROR: %s was called with invalid arguments!\n", __func__);
         }
 }