diff --git a/MozillaFirefox.changes b/MozillaFirefox.changes
index 7873173..a2948ce 100644
--- a/MozillaFirefox.changes
+++ b/MozillaFirefox.changes
@@ -1,7 +1,7 @@
 -------------------------------------------------------------------
 Mon Mar 20 15:35:57 UTC 2017 - wr@rosenauer.org
 
-- disable rust usage for PPC64LE
+- disable rust usage for everything but x86(-64)
 
 -------------------------------------------------------------------
 Fri Mar 17 15:43:29 UTC 2017 - wr@rosenauer.org
diff --git a/MozillaFirefox.spec b/MozillaFirefox.spec
index 4958751..f2ecf61 100644
--- a/MozillaFirefox.spec
+++ b/MozillaFirefox.spec
@@ -28,12 +28,10 @@
 
 %if 0%{?suse_version} > 1320
 %define firefox_use_gtk3 1
-%define firefox_use_rust 1
-%endif
-# Firefox is not prepared for ppc64le rust
-%ifarch ppc64le
+%ifarch %ix86 x86_64
 %define firefox_use_rust 0
 %endif
+%endif
 
 # general build definitions
 %if "%{update_channel}" != "aurora"