diff --git a/ffmpeg.spec b/ffmpeg.spec
index d1f05a1c4aea06ff618d97ae1fb9a7dfc6077053..c94a4cd9b89997ad93ef6b68fa881a0bb66f4475 100644
--- a/ffmpeg.spec
+++ b/ffmpeg.spec
@@ -358,6 +358,9 @@ cp -pr doc/examples/{*.c,Makefile,README} _doc/examples/
 %ifarch armv7hnl
     --enable-neon \
 %endif
+%endif
+%ifarch sw_64
+    --disable-runtime-cpudetect \
 %endif
     || cat ffbuild/config.log