diff --git a/cmake/archdetect.cmake b/cmake/archdetect.cmake
index 015140f..2126840 100644
--- a/cmake/archdetect.cmake
+++ b/cmake/archdetect.cmake
@@ -85,7 +85,7 @@ else()
        set(GNUCC_ARCH armv7a)
        set(TUNE_FLAG generic)
     else()
-       set(GNUCC_ARCH power9)
-       set(TUNE_FLAG power9)
+       set(GNUCC_ARCH power8)
+       set(TUNE_FLAG power8)
     endif()
 endif()