diff --git a/mayan/apps/documents/signals.py b/mayan/apps/documents/signals.py
new file mode 100644
index 0000000000..05b3991020
--- /dev/null
+++ b/mayan/apps/documents/signals.py
@@ -0,0 +1,3 @@
+from django.dispatch import Signal
+
+post_version_upload = Signal(providing_args=['instance'], use_caching=True)