diff --git a/pkgs/development/libraries/tpm2-tss/default.nix b/pkgs/development/libraries/tpm2-tss/default.nix
index bde0f5da0f73..b4bce91d0878 100644
--- a/pkgs/development/libraries/tpm2-tss/default.nix
+++ b/pkgs/development/libraries/tpm2-tss/default.nix
@@ -151,6 +151,8 @@ stdenv.mkDerivation (finalAttrs: {
     # users/groups which aren't guaranteed to exist on the system.
     rm -R $out/lib/udev
 
+    mkdir -p $out/etc/tpm2-tss
+
     # write fapi-config suitable for testing
     cat > $out/etc/tpm2-tss/fapi-config-test.json <<EOF
     {