diff --git a/test/test_internals/deps_synapse.go b/test/test_internals/deps_synapse.go
index 8c308efae85946aac3066cfeccc268896b8d5623..150ff01d569b929657c29b937d25b37ceeeef5b4 100644
--- a/test/test_internals/deps_synapse.go
+++ b/test/test_internals/deps_synapse.go
@@ -103,7 +103,7 @@ func MakeSynapse(domainName string, depNet *NetworkDep) (*SynapseDep, error) {
 	if err != nil {
 		return nil, err
 	}
-	err = os.Chmod(d, 0755)
+	err = os.Chmod(d, 0766)
 	if err != nil {
 		return nil, err
 	}