diff --git a/dataflows/VERSION b/dataflows/VERSION
index 8e0e3bc..ea7f030 100644
--- a/dataflows/VERSION
+++ b/dataflows/VERSION
@@ -1 +1 @@
-0.0.55
+0.0.56
diff --git a/dataflows/helpers/iterable_loader.py b/dataflows/helpers/iterable_loader.py
index fd39534..e37cc67 100644
--- a/dataflows/helpers/iterable_loader.py
+++ b/dataflows/helpers/iterable_loader.py
@@ -47,7 +47,7 @@ def field_type(self, values):
                 pass
             else:
                 assert 'Unknown Python type: %r' % value
-        if len(types) > 1:
+        if len(types) != 1:
             return 'any'
         else:
             return types.pop()