diff --git a/repos/libports/src/lib/libc/vfs_plugin.cc b/repos/libports/src/lib/libc/vfs_plugin.cc
index 9c37f09cf..58f130153 100644
--- a/repos/libports/src/lib/libc/vfs_plugin.cc
+++ b/repos/libports/src/lib/libc/vfs_plugin.cc
@@ -62,7 +62,7 @@ static Libc::Plugin_context *vfs_context(Vfs::Vfs_handle *vfs_handle)
 static void vfs_stat_to_libc_stat_struct(Vfs::Directory_service::Stat const &src,
                                          struct stat *dst)
 {
-	enum { FS_BLOCK_SIZE = 1024 };
+	enum { FS_BLOCK_SIZE = 4096 };
 
 	Genode::memset(dst, 0, sizeof(*dst));
 
diff --git a/repos/ports/src/lib/libc_noux/plugin.cc b/repos/ports/src/lib/libc_noux/plugin.cc
index 2fc58d346..effaa599f 100644
--- a/repos/ports/src/lib/libc_noux/plugin.cc
+++ b/repos/ports/src/lib/libc_noux/plugin.cc
@@ -232,7 +232,7 @@ static bool noux_syscall(Noux::Session::Syscall opcode)
 }
 
 
-enum { FS_BLOCK_SIZE = 1024 };
+enum { FS_BLOCK_SIZE = 4096 };
 
 
 /***********************************************