diff --git a/apkbuild-cpan.in b/apkbuild-cpan.in
index 020abd3..5566f8e 100644
--- a/apkbuild-cpan.in
+++ b/apkbuild-cpan.in
@@ -138,7 +138,7 @@ sub parse_deps {
 	}
 
 	# map package names to alpine packages
-	foreach ( keys $distfiles ) {
+	foreach ( keys %{ $distfiles } ) {
 		$response = $ua->get("http://search.cpan.org/api/dist/$_");
 		$response->is_success or die $response->status_line;
 		my $distdata = $json->decode($response->decoded_content);