diff --git a/subbrute.py b/subbrute.py
index 37191cd..8475588 100755
--- a/subbrute.py
+++ b/subbrute.py
@@ -24,6 +24,9 @@
 import socket
 import struct
 
+# Minimum number of seconds to wait before querying the same nameserver again
+REPEAT_TIMEOUT = 5
+
 #Python 2.x and 3.x compatiablity
 #We need the Queue library for exception handling
 try:
@@ -57,6 +60,9 @@ def query(self, hostname, query_type = 'ANY', name_server = False, use_tcp = Tru
         response = None
         if name_server == False:
             name_server = self.get_ns()
+            # If we just picked the same one again, give it a break
+            if self.last_resolver == name_server:
+                time.sleep(REPEAT_TIMEOUT)
         else:
             self.wildcards = {}
             self.failed_code = None
@@ -856,4 +862,4 @@ def signal_init():
         target = target.strip()
         if target:
             trace(target, record_type, options.subs, options.resolvers, options.process_count, options.print_data, output, json_output)
-            print_target(target, record_type, options.subs, options.resolvers, options.process_count, options.print_data, output, json_output)
\ No newline at end of file
+            print_target(target, record_type, options.subs, options.resolvers, options.process_count, options.print_data, output, json_output)