diff --git a/toolchain/Config.in.devel b/toolchain/Config.in.devel
index 48fe1465d..c7ad48f7e 100644
--- a/toolchain/Config.in.devel
+++ b/toolchain/Config.in.devel
@@ -37,7 +37,8 @@ config BR2_SOFT_FLOAT
 
 config BR2_TARGET_OPTIMIZATION
 	string "Target Optimizations"
-	default "-Os -pipe -mips32 -mtune=mips32"
+	default "-Os -pipe -march=i486" if BR2_i386
+	default "-Os -pipe -mips32 -mtune=mips32" if BR2_mipsel
 	help
 	  Optimizations to use when building for the target host.