diff --git a/systemtap.spec b/systemtap.spec
index d162b3c..0742ad0 100644
--- a/systemtap.spec
+++ b/systemtap.spec
@@ -1256,7 +1256,7 @@ done
 
 # PRERELEASE
 %changelog
-* Mon May 07 2019 Serguei Makarov <smakarov@redhat.com> - 4.1-1
+* Tue May 07 2019 Serguei Makarov <smakarov@redhat.com> - 4.1-1
 - Upstream release.
 
 * Sat Oct 13 2018 Frank Ch. Eigler <fche@redhat.com> - 4.0-1