diff --git a/etc/linux-sysctl/30-syncthing.conf b/etc/linux-sysctl/30-syncthing.conf
index 5bfea12df..6a364618b 100644
--- a/etc/linux-sysctl/30-syncthing.conf
+++ b/etc/linux-sysctl/30-syncthing.conf
@@ -1,3 +1,4 @@
-# Increase maximum receive socket buffer size to 2MiB for QUIC connections
-# see https://github.com/quic-go/quic-go/wiki/UDP-Receive-Buffer-Size
-net.core.rmem_max = 2097152
+# Increase maximum socket buffer sizes to 2.5MiB for QUIC connections
+# see https://github.com/quic-go/quic-go/wiki/UDP-Buffer-Sizes
+net.core.rmem_max = 2621440
+net.core.wmem_max = 2621440