diff --git a/xmlsec1.changes b/xmlsec1.changes
index 9f2196c..c3610e8 100644
--- a/xmlsec1.changes
+++ b/xmlsec1.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Nov 30 14:49:16 UTC 2023 - Guillaume GARDET <guillaume.gardet@opensuse.org>
+
+- Make use of openSUSE build flags
+
 -------------------------------------------------------------------
 Tue Aug  8 15:41:15 UTC 2023 - Fridrich Strba <fstrba@suse.com>
 
diff --git a/xmlsec1.spec b/xmlsec1.spec
index 1de104f..a77b9d7 100644
--- a/xmlsec1.spec
+++ b/xmlsec1.spec
@@ -148,8 +148,8 @@ Libraries, includes, etc. for developing XML Security applications with NSS.
 
 %build
 # Allow for deprecations
-export CFLAGS="-Wno-error=deprecated-declarations -std=c99"
-export CXXFLAGS="-Wno-error=deprecated-declarations"
+export CFLAGS="%{optflags} -Wno-error=deprecated-declarations -std=c99"
+export CXXFLAGS="%{optflags} -Wno-error=deprecated-declarations"
 %configure \
     --disable-static \
     --disable-silent-rules \