diff --git a/pgo/pgo.sh b/pgo/pgo.sh
index 2f409268..f782a9f8 100755
--- a/pgo/pgo.sh
+++ b/pgo/pgo.sh
@@ -82,6 +82,7 @@ set -x
 # echo "CFLAGS: ${CFLAGS}"
 
 export CFLAGS
+export CCACHE_DISABLE=1
 meson setup --buildtype=release -Db_lto=true "${@}" "${blddir}" "${srcdir}"
 
 if [ ${do_pgo} = yes ]; then