diff --git a/source/blender/depsgraph/intern/depsgraph.cc b/source/blender/depsgraph/intern/depsgraph.cc
index c0feab2262a..99804a7cd7d 100644
--- a/source/blender/depsgraph/intern/depsgraph.cc
+++ b/source/blender/depsgraph/intern/depsgraph.cc
@@ -77,6 +77,8 @@ Depsgraph::Depsgraph(Main *bmain, Scene *scene, ViewLayer *view_layer, eEvaluati
   memset(id_type_updated, 0, sizeof(id_type_updated));
   memset(id_type_exist, 0, sizeof(id_type_exist));
   memset(physics_relations, 0, sizeof(physics_relations));
+
+  add_time_source();
 }
 
 Depsgraph::~Depsgraph()