diff --git a/ceilometer/api/controllers/v2.py b/ceilometer/api/controllers/v2.py
index beee8b8af..803d9428c 100644
--- a/ceilometer/api/controllers/v2.py
+++ b/ceilometer/api/controllers/v2.py
@@ -189,7 +189,8 @@ class Query(_Base):
     # Functions to convert the data field to the correct type.
     _type_converters = {'integer': int,
                         'float': float,
-                        'boolean': strutils.bool_from_string,
+                        'boolean': functools.partial(
+                            strutils.bool_from_string, strict=True),
                         'string': six.text_type,
                         'datetime': timeutils.parse_isotime}
 
diff --git a/ceilometer/tests/api/v2/test_list_meters_scenarios.py b/ceilometer/tests/api/v2/test_list_meters_scenarios.py
index 7aeb51b87..5e1140018 100644
--- a/ceilometer/tests/api/v2/test_list_meters_scenarios.py
+++ b/ceilometer/tests/api/v2/test_list_meters_scenarios.py
@@ -24,6 +24,7 @@ import datetime
 import json as jsonutils
 import logging
 import testscenarios
+import webtest.app
 
 from ceilometer.publisher import utils
 from ceilometer import sample
@@ -43,6 +44,30 @@ class TestListEmptyMeters(FunctionalTest,
         self.assertEqual([], data)
 
 
+class TestValidateUserInput(FunctionalTest,
+                            tests_db.MixinTestsWithBackendScenarios):
+
+    def test_list_meters_query_float_metadata(self):
+        self.assertRaises(webtest.app.AppError, self.get_json,
+                          '/meters/meter.test',
+                          q=[{'field': 'metadata.util',
+                          'op': 'eq',
+                          'value': '0.7.5',
+                          'type': 'float'}])
+        self.assertRaises(webtest.app.AppError, self.get_json,
+                          '/meters/meter.test',
+                          q=[{'field': 'metadata.util',
+                          'op': 'eq',
+                          'value': 'abacaba',
+                          'type': 'boolean'}])
+        self.assertRaises(webtest.app.AppError, self.get_json,
+                          '/meters/meter.test',
+                          q=[{'field': 'metadata.util',
+                          'op': 'eq',
+                          'value': '45.765',
+                          'type': 'integer'}])
+
+
 class TestListMeters(FunctionalTest,
                      tests_db.MixinTestsWithBackendScenarios):
 
@@ -309,7 +334,6 @@ class TestListMeters(FunctionalTest,
                          set(['meter.mine']))
         self.assertEqual(set(r['resource_metadata']['is_public'] for r
                              in data), set(['False']))
-        # FIXME(gordc): verify no false positive (Bug#1236496)
 
     def test_list_meters_query_string_metadata(self):
         data = self.get_json('/meters/meter.test',