diff --git a/main.go b/main.go
index ddaa9f6..a5d3bdb 100644
--- a/main.go
+++ b/main.go
@@ -245,9 +245,11 @@ func LoadFromOSVDev() {
 		aql := `FOR vuln IN vulns
 					LET purls = UNIQUE(
 						FOR affected IN vuln.affected
-							FILTER HAS(affected, 'package') AND HAS(affected.package, 'purl')
-							RETURN FIRST(SPLIT(affected.package.purl, '?'))
+						FILTER LENGTH(affected.package.purl) > 0
+						LET purl = FIRST(SPLIT(affected.package.purl, '?'))
+						RETURN purl
 					)
+					FILTER LENGTH(purls) > 0
 					UPDATE { _key: vuln._key } WITH { purls: purls } IN vulns`
 
 		ctx := context.Background() // use default database context