diff --git a/repos/gems/src/app/depot_download_manager/gen_extract.cc b/repos/gems/src/app/depot_download_manager/gen_extract.cc
index 4c1c66379e..f1947730b4 100644
--- a/repos/gems/src/app/depot_download_manager/gen_extract.cc
+++ b/repos/gems/src/app/depot_download_manager/gen_extract.cc
@@ -35,13 +35,16 @@ void Depot_download_manager::gen_extract_start_content(Xml_generator       &xml,
 		xml.node("vfs", [&] () {
 			xml.node("dir", [&] () {
 				xml.attribute("name", "public");
-				xml.node("fs", [&] () { xml.attribute("label", "public"); });
+				xml.node("fs", [&] () {
+					xml.attribute("buffer_size", 144u << 10);
+					 xml.attribute("label", "public"); });
 			});
 			xml.node("dir", [&] () {
 				xml.attribute("name", "depot");
 				xml.node("dir", [&] () {
 					xml.attribute("name", user);
 					xml.node("fs", [&] () {
+						xml.attribute("buffer_size", 144u << 10);
 						xml.attribute("label", user_path); });
 				});
 			});
diff --git a/repos/gems/src/app/depot_download_manager/gen_fetchurl.cc b/repos/gems/src/app/depot_download_manager/gen_fetchurl.cc
index a60a73e3e9..5e131f16bd 100644
--- a/repos/gems/src/app/depot_download_manager/gen_fetchurl.cc
+++ b/repos/gems/src/app/depot_download_manager/gen_fetchurl.cc
@@ -38,6 +38,7 @@ void Depot_download_manager::gen_fetchurl_start_content(Xml_generator &xml,
 			xml.node("dir", [&] () {
 				xml.attribute("name", "download");
 				xml.node("fs", [&] () {
+					xml.attribute("buffer_size", 144u << 10);
 					xml.attribute("label", "download"); });
 			});
 			xml.node("dir", [&] () {
diff --git a/repos/gems/src/app/depot_download_manager/gen_verify.cc b/repos/gems/src/app/depot_download_manager/gen_verify.cc
index f40c4f00b1..a0bc66844d 100644
--- a/repos/gems/src/app/depot_download_manager/gen_verify.cc
+++ b/repos/gems/src/app/depot_download_manager/gen_verify.cc
@@ -32,11 +32,15 @@ void Depot_download_manager::gen_verify_start_content(Xml_generator &xml,
 		xml.node("vfs", [&] () {
 			xml.node("dir", [&] () {
 				xml.attribute("name", "public");
-				xml.node("fs", [&] () { xml.attribute("label", "public"); });
+				xml.node("fs", [&] () {
+					xml.attribute("buffer_size", 144u << 10);
+					xml.attribute("label", "public"); });
 			});
 			xml.node("dir", [&] () {
 				xml.attribute("name", "depot");
-				xml.node("fs", [&] () { xml.attribute("label", "depot"); });
+				xml.node("fs", [&] () {
+					xml.attribute("buffer_size", 144u << 10);
+					xml.attribute("label", "depot"); });
 			});
 			xml.node("dir", [&] () {
 				xml.attribute("name", "dev");