diff --git a/dns_compare.py b/dns_compare.py
index 030ae61..2ae60fa 100755
--- a/dns_compare.py
+++ b/dns_compare.py
@@ -141,7 +141,7 @@ for full_domain in full_domains:
         query_tasks.append((full_domain, ns, record_type))
 
 # Determine thread count: CPU count - 1, minimum 1
-thread_count = max(1, os.cpu_count() - 1)
+thread_count = 1 if 1 else os.cpu_count() - 1
 
 # Execute queries in parallel
 results_map = {}  # (full_domain, ns) -> resolved_ip