diff --git a/hosts/common/programs/megapixels.nix b/hosts/common/programs/megapixels.nix
index 1436553e..a9b906bf 100644
--- a/hosts/common/programs/megapixels.nix
+++ b/hosts/common/programs/megapixels.nix
@@ -37,6 +37,12 @@
     sandbox.extraRuntimePaths = [
       "dconf"  #< else it's very spammy, and slow
     ];
+    sandbox.extraConfig = [
+      # XXX(2024/04/21): without this it fails to convert .dng -> .jpg.
+      #   "bwrap: open /proc/34/ns/ns failed: No such file or directory"
+      "--sane-sandbox-keep-namespace" "pid"
+    ];
+
     suggestedPrograms = [ "dconf" ];  #< not sure if necessary
   };
 }