diff --git a/libfdatetime.changes b/libfdatetime.changes
index fdb2b97..0855b55 100644
--- a/libfdatetime.changes
+++ b/libfdatetime.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Jan 17 02:13:04 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
+
+- Force autoreconf rerun due to patch presence
+
 -------------------------------------------------------------------
 Wed Jan 12 10:36:27 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/libfdatetime.spec b/libfdatetime.spec
index d03c536..1585b81 100644
--- a/libfdatetime.spec
+++ b/libfdatetime.spec
@@ -59,7 +59,7 @@ applications that want to make use of libfdatetime.
 %autosetup -p1
 
 %build
-if [ ! -e configure ]; then ./autogen.sh; fi
+autoreconf -fi
 %configure --disable-static
 %make_build