--- a/mobile/app/mobile.js
+++ b/mobile/app/mobile.js
@@ -423,17 +423,17 @@ pref("browser.ui.touch.weight.visited", 
 pref("plugin.disable", false);
 #else
 pref("plugin.disable", true);
 #endif
 pref("dom.ipc.plugins.enabled", true);
 
 // process priority
 // higher values give content process less CPU time
-#if MOZ_PLATFORM_MAEMO
+#if MOZ_PLATFORM_MAEMO == 5
 pref("dom.ipc.content.nice", 10);
 #else
 pref("dom.ipc.content.nice", 1);
 #endif
 
 // product URLs
 // The breakpad report server to link to in about:crashes
 pref("breakpad.reportURL", "http://crash-stats.mozilla.com/report/index/");