diff --git a/nixos/modules/services/printing/cupsd.nix b/nixos/modules/services/printing/cupsd.nix
index 86b0c8d69beb..26f684af3dd1 100644
--- a/nixos/modules/services/printing/cupsd.nix
+++ b/nixos/modules/services/printing/cupsd.nix
@@ -296,6 +296,10 @@ in
     # gets loaded, and then cups cannot access the printers.
     boot.blacklistedKernelModules = [ "usblp" ];
 
+    # Some programs like print-manager rely on this value to get
+    # printer test pages.
+    environment.sessionVariables.CUPS_DATADIR = "${bindir}/share/cups";
+
     systemd.packages = [ cups.out ];
 
     systemd.sockets.cups = mkIf cfg.startWhenNeeded {