diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index 6f927be52598..0c498c5d8285 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -323,6 +323,12 @@ with stdenv.lib;
   TRANSPARENT_HUGEPAGE_ALWAYS? n
   TRANSPARENT_HUGEPAGE_MADVISE? y
 
+  # zram support (e.g for in-memory compressed swap)
+  ${optionalString (versionAtLeast version "3.4") ''
+    ZSMALLOC y
+  ''}
+  ZRAM m
+
   ${kernelPlatform.kernelExtraConfig or ""}
   ${extraConfig}
 ''