1 files changed, 2 insertions, 2 deletions

diff --git a/tools/idevicescreenshot.c b/tools/idevicescreenshot.c
index 74acdf6..f2bcd48 100644
--- a/tools/idevicescreenshot.c
+++ b/tools/idevicescreenshot.c
@@ -55,7 +55,7 @@ int main(int argc, char **argv)
                 }
                 else if (!strcmp(argv[i], "-u") || !strcmp(argv[i], "--udid")) {
                         i++;
-                        if (!argv[i] || (strlen(argv[i]) != 40)) {
+                        if (!argv[i] || !*argv[i]) {
                                 print_usage(argc, argv);
                                 return 0;
                         }
@@ -158,7 +158,7 @@ void print_usage(int argc, char **argv)
         printf("NOTE: A mounted developer disk image is required on the device, otherwise\n");
         printf("the screenshotr service is not available.\n\n");
         printf("  -d, --debug\t\tenable communication debugging\n");
-        printf("  -u, --udid UDID\ttarget specific device by its 40-digit device UDID\n");
+        printf("  -u, --udid UDID\ttarget specific device by UDID\n");
         printf("  -h, --help\t\tprints usage information\n");
         printf("\n");
         printf("Homepage: <" PACKAGE_URL ">\n");