diff --git a/aptpkg b/aptpkg
index 1cef6a7..217c75d 100755
--- a/aptpkg
+++ b/aptpkg
@@ -27,6 +27,11 @@ error_usage_die(){
 	exit 1
 }
 
+# Verify sha512sums
+verify(){
+	echo "$sha512sums" | sha512sum -c
+}
+
 # Copy/ install wrapper for files
 cin-bin(){
 	install -Dm755 "$@"
@@ -59,7 +64,9 @@ $customcontrol
 # Download a debian package
 build_deb(){
 	echo "Getting $source"
-	wget "$source" -qO dist/"$name"_"$version"-"$rev"_amd64.deb
+	wget "$source" -qP dist/
+
+	( cd dist ; verify )
 }
 
 # Download and build using files
@@ -69,7 +76,14 @@ build_file(){
 	cd "$1"
 	mkdir -p "$builddir"
 
-	download "$@"
+	for url in $source; do
+		echo "Getting $source"
+		wget -q "$url"
+	done
+
+	verify
+
+	# Run
 	steps "$@"
 
 	gen_control_file "$@"