diff --git a/README.md b/README.md
index 2fc5ad0..6f7916e 100644
--- a/README.md
+++ b/README.md
@@ -94,7 +94,7 @@ The command-line interface is straightforward as reflected in the output from
         --response-timeout <ms>            Response timeout (default: 100)
         --rs-485                           Enable RS-485 mode
         --rs-485-config <config>           Set RS-485 configuration
-        --alert none|bell|blink            Alert on connect/disconnect (default: none)
+        --alert bell|blink|none            Alert on connect/disconnect (default: none)
     -v, --version                          Display version
     -h, --help                             Display help
 
diff --git a/src/options.c b/src/options.c
index 52fd00d..9d4b2e3 100644
--- a/src/options.c
+++ b/src/options.c
@@ -122,7 +122,7 @@ void print_help(char *argv[])
     printf("      --response-timeout <ms>            Response timeout (default: 100)\n");
     printf("      --rs-485                           Enable RS-485 mode\n");
     printf("      --rs-485-config <config>           Set RS-485 configuration\n");
-    printf("      --alert none|bell|blink            Alert on connect/disconnect (default: none)\n");
+    printf("      --alert bell|blink|none            Alert on connect/disconnect (default: none)\n");
     printf("  -v, --version                          Display version\n");
     printf("  -h, --help                             Display help\n");
     printf("\n");