diff --git a/limnoria.spec b/limnoria.spec
index b0eb8c9..66cc9fe 100644
--- a/limnoria.spec
+++ b/limnoria.spec
@@ -99,7 +99,8 @@ sed -i 1"s|#!/usr/bin/python||" plugins/Debug/plugin.py
 
 # This should be set to the day of the release. 
 # It's gets added as 'version' and is based on build time, not release time.
-export SOURCE_DATE_EPOCH=1573327269
+SOURCE_DATE_EPOCH=`date --date=%{version} +\%s`
+export SOURCE_DATE_EPOCH
 
 %if %{python3}
 %{__python3} setup.py build
@@ -142,6 +143,9 @@ export SOURCE_DATE_EPOCH=1573327269
 %endif
 
 %changelog
+* Fri May 28 2021 Simo Sorce <simo@fedoraproject.org> - 20210411-2
+- Fix version string forever by calculating it
+
 * Sat Apr 24 2021 Kevin Fenzi <kevin@scrye.com> - 20210411-1
 - Upgrade to 20210411.