diff --git a/opentech/apply/stream_forms/fields.py b/opentech/apply/stream_forms/fields.py
index efc205118002356c4b0fd1ef014a22f0d7bc40b9..c45d4f1337f7f482c984b52976827e52c3e92baa 100644
--- a/opentech/apply/stream_forms/fields.py
+++ b/opentech/apply/stream_forms/fields.py
@@ -18,6 +18,9 @@ class MultiFileInput(ClearableFileInput):
 
     def is_initial(self, value):
         is_initial = super().is_initial
+        if not value:
+            return False
+
         try:
             return all(
                 is_initial(file) for file in value