diff --git a/mksrcinfo.sh b/mksrcinfo.sh
index afc9bba..3718884 100755
--- a/mksrcinfo.sh
+++ b/mksrcinfo.sh
@@ -7,12 +7,6 @@ section_arch_fields=(source depends checkdepends makedepends optdepends provides
 section_array_fields=(arch groups license noextract options backup validpgpkeys "${section_arch_fields[@]}")
 section_fields=("${section_scalar_fields[@]}" "${section_array_fields[@]}")
 
-# load PKGBUILD
-set -e
-cat "${1:-./PKGBUILD}"
-source "${1:-./PKGBUILD}"
-set +e
-
 # check if a variable is an array
 is_array() {
 	[[ "$(declare -p $1)" =~ "declare -a" ]]
@@ -77,6 +71,13 @@ print_section_content() {
 }
 
 # main
+for field in "${base_fields[@]}"; do
+	eval "unset $field"
+done
+clear_fields
+
+# load PKGBUILD
+source "${1:-./PKGBUILD}"
 
 # determine pkgbase
 if ! is_array pkgname; then