diff --git a/libjcat.changes b/libjcat.changes
index fca87a8..fec039a 100644
--- a/libjcat.changes
+++ b/libjcat.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Jun 25 09:16:15 UTC 2020 - Bernhard Wiedemann <bwiedemann@suse.com>
+
+- remove unreproducible signature file to make package build reproducible
+
 -------------------------------------------------------------------
 Tue Jun 09 15:08:08 UTC 2020 - dimstar@opensuse.org
 
diff --git a/libjcat.spec b/libjcat.spec
index bc3710f..3b8dad9 100644
--- a/libjcat.spec
+++ b/libjcat.spec
@@ -93,6 +93,8 @@ Files for development with %{name}.
 
 %install
 %meson_install
+# remove unreproducible signature file to make package build reproducible
+rm -f %{buildroot}%{_libexecdir}/installed-tests/libjcat/colorhug/firmware.bin.p7c
 
 %post -n %{name}%{sover} -p /sbin/ldconfig
 %postun -n %{name}%{sover} -p /sbin/ldconfig