diff --git a/festival.spec b/festival.spec
index 5c58d05..48c5429 100644
--- a/festival.spec
+++ b/festival.spec
@@ -138,6 +138,12 @@ make
 #g++ -shared -L../../../speech_tools/lib -lestools -lestbase -leststring -ltermcap -Wl,-soname -Wl,libFestival.so.1 -Wl,--rpath -Wl,/usr/lib -o ../libFestival.so.1.4.1 *
 
 popd
+
+%ifarch ppc
+CFLAGS="$RPM_OPT_FLAGS -O1"
+export CFLAGS
+%endif
+
 %configure 
 FTLIBDIR=%{_datadir}/festival make