diff --git a/v2/pkg/subscraping/sources/securitytrails/securitytrails.go b/v2/pkg/subscraping/sources/securitytrails/securitytrails.go
index 42669b381..c8c6ca88c 100644
--- a/v2/pkg/subscraping/sources/securitytrails/securitytrails.go
+++ b/v2/pkg/subscraping/sources/securitytrails/securitytrails.go
@@ -4,6 +4,7 @@ package securitytrails
 import (
 	"context"
 	"fmt"
+	"strings"
 	"time"
 
 	jsoniter "github.com/json-iterator/go"
@@ -62,6 +63,12 @@ func (s *Source) Run(ctx context.Context, domain string, session *subscraping.Se
 		resp.Body.Close()
 
 		for _, subdomain := range securityTrailsResponse.Subdomains {
+			if strings.HasSuffix(subdomain, ".") {
+				subdomain += domain
+			} else {
+				subdomain = subdomain + "." + domain
+			}
+
 			results <- subscraping.Result{Source: s.Name(), Type: subscraping.Subdomain, Value: subdomain}
 			s.results++
 		}