diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index c2e7f24..cbd7d15 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -1,5 +1,5 @@
 name: Go
-on: [push]
+on: [push, pull_request]
 jobs:
 
   build:
diff --git a/src/gossa.go b/src/gossa.go
index 4fceb93..db78c8f 100755
--- a/src/gossa.go
+++ b/src/gossa.go
@@ -57,6 +57,7 @@ func check(e error) {
 func exitPath(w http.ResponseWriter, s ...interface{}) {
 	if r := recover(); r != nil {
 		log.Println("error", s, r)
+		w.WriteHeader(500)
 		w.Write([]byte("error"))
 	} else if *verb {
 		log.Println(s...)