diff --git a/pkgs/tools/admin/pebble/default.nix b/pkgs/tools/admin/pebble/default.nix
index 8fc32a2e4e76730..a3c8d20b107f43d 100644
--- a/pkgs/tools/admin/pebble/default.nix
+++ b/pkgs/tools/admin/pebble/default.nix
@@ -1,4 +1,5 @@
 { lib
+, stdenv
 , buildGoModule
 , fetchFromGitHub
 , nixosTests
@@ -22,6 +23,8 @@ buildGoModule rec {
   };
 
   meta = {
+    # ca/ca.go:374:67: 9223372038 (untyped int constant) overflows uint
+    broken = stdenv.hostPlatform.is32bit;
     homepage = "https://github.com/letsencrypt/pebble";
     description = "A miniature version of Boulder, Pebble is a small RFC 8555 ACME test server not suited for a production CA";
     license = [ lib.licenses.mpl20 ];