diff --git a/README.md b/README.md
index b623b25..592d6b0 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,7 @@
     Usage: ios-deploy [OPTION]...
 	  -d, --debug                  launch the app in lldb after installation
 	  -i, --id <device_id>         the id of the device to connect to
-	  -c, --detect                 only detect if the device is connected
+	  -c, --detect                 list all connected devices
 	  -b, --bundle <bundle.app>    the path to the app bundle to be installed
 	  -a, --args <args>            command line arguments to pass to the app when launching it
 	  -s, --envs <envs>            environment variables, space separated key-value pairs, to pass to the app when launching it
diff --git a/src/ios-deploy/ios-deploy.m b/src/ios-deploy/ios-deploy.m
index 06eb792..840b37b 100644
--- a/src/ios-deploy/ios-deploy.m
+++ b/src/ios-deploy/ios-deploy.m
@@ -2667,7 +2667,7 @@
         @"Usage: %@ [OPTION]...\n"
         @"  -d, --debug                  launch the app in lldb after installation\n"
         @"  -i, --id <device_id>         the id of the device to connect to\n"
-        @"  -c, --detect                 only detect if the device is connected\n"
+        @"  -c, --detect                 list all connected devices\n"
         @"  -b, --bundle <bundle.app>    the path to the app bundle to be installed\n"
         @"  -a, --args <args>            command line arguments to pass to the app when launching it\n"
         @"  -s, --envs <envs>            environment variables, space separated key-value pairs, to pass to the app when launching it\n"