diff --git a/machines/vm-audio.nix b/machines/vm-audio.nix
index eba4c3e..8cb8da0 100644
--- a/machines/vm-audio.nix
+++ b/machines/vm-audio.nix
@@ -95,16 +95,8 @@
       "net.core.wmem_default" = 1048576;
       "net.core.wmem_max" = 16777216;
       "net.core.optmem_max" = 65536;
-      "net.ipv4.tcp_rmem" = [
-        4096
-        1048576
-        2097152
-      ];
-      "net.ipv4.tpc_wmem" = [
-        4096
-        65536
-        16777216
-      ];
+      "net.ipv4.tcp_rmem" = "4096 1048576 2097152";
+      "net.ipv4.tpc_wmem" = "4096 65536 16777216";
       "net.ipv4.udp_rmem_min" = 8192;
       "net.ipv4.udp_wmem_min" = 8192;
     };