diff --git a/source/blender/draw/engines/workbench/workbench_deferred.c b/source/blender/draw/engines/workbench/workbench_deferred.c
index fcf0d451742..1307f1c4446 100644
--- a/source/blender/draw/engines/workbench/workbench_deferred.c
+++ b/source/blender/draw/engines/workbench/workbench_deferred.c
@@ -274,10 +274,10 @@ void workbench_deferred_engine_init(WORKBENCH_Data *vedata)
 
 	if (!stl->g_data) {
 		/* Alloc transient pointers */
-		stl->g_data = MEM_mallocN(sizeof(*stl->g_data), __func__);
+		stl->g_data = MEM_callocN(sizeof(*stl->g_data), __func__);
 	}
 	if (!stl->effects) {
-		stl->effects = MEM_mallocN(sizeof(*stl->effects), __func__);
+		stl->effects = MEM_callocN(sizeof(*stl->effects), __func__);
 		workbench_effect_info_init(stl->effects);
 	}