diff --git a/extra/thunderbird/PKGBUILD b/extra/thunderbird/PKGBUILD
index bd020af42..abb3ef1b8 100644
--- a/extra/thunderbird/PKGBUILD
+++ b/extra/thunderbird/PKGBUILD
@@ -80,8 +80,6 @@ prepare() {
   if [[ $CARCH == "armv7h" ]]; then
     echo "ac_add_options --disable-elf-hack" >> .mozconfig
     MAKEFLAGS="-j2"
-    CFLAGS=`echo $CFLAGS | sed -e 's/vfpv3-d16/neon/'`
-    CXXFLAGS="$CFLAGS"
     sed -i '/cargo_rustc_flags += -Clto/d' config/makefiles/rust.mk
   fi