diff --git a/tools/reload-dns.py b/tools/reload-dns.py
index 3172e2f..a56a585 100644
--- a/tools/reload-dns.py
+++ b/tools/reload-dns.py
@@ -6,7 +6,7 @@ import traceback
 
 
 if __name__ == "__main__":
-    if len(sys.argv) < 2:
+    if len(sys.argv) < 4:
         sys.stderr.write('python3 reload-dns.py <interface> <peer> <target>\n')
         exit(1)