diff --git a/ocaml-pp.changes b/ocaml-pp.changes
index 659d4f3..57e4e9f 100644
--- a/ocaml-pp.changes
+++ b/ocaml-pp.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri May  5 05:05:05 UTC 2023 - ohering@suse.de
+
+- JaneStreet libraries are 64bit, this pkg depends on them
+
 -------------------------------------------------------------------
 Sat Apr  9 12:34:56 UTC 2022 - ohering@suse.de
 
diff --git a/ocaml-pp.spec b/ocaml-pp.spec
index edc9ff0..6a70c60 100644
--- a/ocaml-pp.spec
+++ b/ocaml-pp.spec
@@ -21,6 +21,8 @@
 %if "%build_flavor" == "testsuite"
 %if %{without ocaml_pp_testsuite}
 ExclusiveArch:  do-not-build
+%else
+ExclusiveArch:  aarch64 ppc64 ppc64le riscv64 s390x x86_64
 %endif
 %define nsuffix -testsuite
 %else