diff --git a/wsme/tests/test_types.py b/wsme/tests/test_types.py
index ef432e4..494fb5e 100644
--- a/wsme/tests/test_types.py
+++ b/wsme/tests/test_types.py
@@ -269,6 +269,11 @@ class TestTypes(unittest.TestCase):
         except ValueError:
             pass
 
+    def test_validate_float(self):
+        self.assertEqual(types.validate_value(float, 1), 1.0)
+        self.assertEqual(types.validate_value(float, '1'), 1.0)
+        self.assertEqual(types.validate_value(float, 1.1), 1.1)
+
     def test_register_invalid_array(self):
         self.assertRaises(ValueError, types.register_type, [])
         self.assertRaises(ValueError, types.register_type, [int, str])
diff --git a/wsme/types.py b/wsme/types.py
index 02a5f84..95bee91 100644
--- a/wsme/types.py
+++ b/wsme/types.py
@@ -218,6 +218,8 @@ def validate_value(datatype, value):
             value = value.decode()
         elif datatype is bytes and isinstance(value, text):
             value = value.encode()
+        elif datatype is float and not isinstance(value, float):
+            value = float(value)
         elif not isinstance(value, datatype):
             raise ValueError(
                 "Wrong type. Expected '%s', got '%s'" % (