diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
index 03217b79f733..b1d7da71ba3d 100644
--- a/modules/libpref/init/StaticPrefList.yaml
+++ b/modules/libpref/init/StaticPrefList.yaml
@@ -8546,7 +8546,7 @@
 # API instead of PR_GetAddrInfoByName
 - name: network.dns.dns_query_single_label
   type: RelaxedAtomicBool
-  value: true
+  value: false
   mirror: always
 
 # The proxy type. See nsIProtocolProxyService.idl