diff --git a/srcpkgs/efivar/template b/srcpkgs/efivar/template
index 5b369dcc0e1..ef311f9b399 100644
--- a/srcpkgs/efivar/template
+++ b/srcpkgs/efivar/template
@@ -15,7 +15,7 @@ make_build_args="libdir=/usr/lib"
 make_build_target="all test"
 make_install_args="libdir=/usr/lib"
 
-CFLAGS="-D_GNU_SOURCE"
+CFLAGS="-D_GNU_SOURCE -Wno-error=address-of-packed-member"
 
 post_build() {
 	make -C src/test