diff --git a/dnscrypt-proxy.changes b/dnscrypt-proxy.changes
index e4192aa..77853b9 100644
--- a/dnscrypt-proxy.changes
+++ b/dnscrypt-proxy.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Oct 23 08:42:59 UTC 2017 - bwiedemann@suse.com
+
+- Make builds reproducible by using a constant __DATE__ (boo#1047218)
+
 -------------------------------------------------------------------
 Wed Sep  6 08:51:47 UTC 2017 - jengelh@inai.de
 
diff --git a/dnscrypt-proxy.spec b/dnscrypt-proxy.spec
index 0c36bca..26edc7e 100644
--- a/dnscrypt-proxy.spec
+++ b/dnscrypt-proxy.spec
@@ -64,7 +64,7 @@ Header files for development of DNSCrypt plugins.
 %setup -q
 %patch0 -p1
 # Strip __DATE__
-sed -i "s/__DATE__/\"%(date +%%F)\"/" src/proxy/options.c
+sed -i "s/__DATE__/\"%(date -u -r ChangeLog +%%F)\"/" src/proxy/options.c
 # Don't install COPYING with make, we use our %%license marcro if possible
 sed -i "/\tCOPYING / d" Makefile.am
 sed -i "s/COPYING //" Makefile.in