diff --git a/modules/database/db_flatfile.cpp b/modules/database/db_flatfile.cpp
index 37ee3f2ef..5ccf7772f 100644
--- a/modules/database/db_flatfile.cpp
+++ b/modules/database/db_flatfile.cpp
@@ -324,6 +324,8 @@ class DBFlatFile : public Module, public Pipe
 			{
 				Serializable *base = *it;
 				Serialize::Type *s_type = base->GetSerializableType();
+				if (!s_type)
+					continue;
 
 				data.fs = databases[s_type->GetOwner()];
 				if (!data.fs || !data.fs->is_open())