diff --git a/compilation_flags.file b/compilation_flags.file
index 2a2b061c720..0b97a530580 100644
--- a/compilation_flags.file
+++ b/compilation_flags.file
@@ -2,6 +2,8 @@
 %if "%{?arch_build_flags:set}" != "set"
 %ifarch ppc64le
 %define arch_build_flags  -mcpu=power8 -mtune=power8 --param=l1-cache-size=64 --param=l1-cache-line-size=128 --param=l2-cache-size=512
+%undefine lto_build_flags
+%define lto_build_flags %{nil}
 %endif
 %ifarch aarch64
 %define arch_build_flags -march=armv8-a -mno-outline-atomics