diff --git a/sssd.spec b/sssd.spec
index 0494d13..1e870c0 100644
--- a/sssd.spec
+++ b/sssd.spec
@@ -346,7 +346,7 @@ export LDB_DIR="$(pkg-config ldb --variable=modulesdir)"
 export PATH="$PATH:/usr/sbin"
 
 autoreconf -fiv;
-export CFLAGS="$RPM_OPT_FLAGS -fPIE"
+export CFLAGS="%optflags -fPIE"
 export LDFLAGS="-pie"
 %configure \
     --with-crypto=libcrypto \