diff --git a/main.go b/main.go
index d665c32..69e9193 100644
--- a/main.go
+++ b/main.go
@@ -38,7 +38,7 @@ func ConnectDB() *sql.DB {
 func main() {
 	csrfKey := []byte(os.Getenv("LENSLOCKED_CSRF_KEY"))
 	if len(csrfKey) < 32 {
-		panic("Error: bad csrf protection key")
+		panic("Error: bad csrf protection key\nPlease set a key with the LENSLOCKED_CSRF_KEY env var.")
 	}
 
 	db := ConnectDB()