diff --git a/srcpkgs/avr-gcc/template b/srcpkgs/avr-gcc/template
index c4695eeeb4d..789bc03345e 100644
--- a/srcpkgs/avr-gcc/template
+++ b/srcpkgs/avr-gcc/template
@@ -19,7 +19,7 @@ do_configure() {
 	mkdir obj-avr
 	cd obj-avr
 
-	CFLAGS="${CFLAGS/-mtune=generic/}"
+	export CFLAGS="-O2 -pipe"
 
 	CONFIG_SHELL=/bin/bash ../configure \
 		--disable-install-libiberty \