diff --git a/python-rjsmin.changes b/python-rjsmin.changes
index 200eb3d..369e90d 100644
--- a/python-rjsmin.changes
+++ b/python-rjsmin.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Mon Jan  8 06:38:41 UTC 2024 - Bernhard Wiedemann <bwiedemann@suse.de>
+
+- Build without devel-instrumentation
+- Get reproducible builds
+
 -------------------------------------------------------------------
 Tue Jan  2 21:59:41 UTC 2024 - Dirk Müller <dmueller@suse.com>
 
diff --git a/python-rjsmin.spec b/python-rjsmin.spec
index c0647bb..dcc865d 100644
--- a/python-rjsmin.spec
+++ b/python-rjsmin.spec
@@ -47,6 +47,7 @@ at runtime (rather than during a preprocessing step).
 %autosetup -p1 -n %{mod_name}-%{version}
 
 %build
+export CFLAGS="%optflags" # must be defined to build without -ftest-coverage instrumentation
 %pyproject_wheel
 
 %install