diff --git a/muranopkgcheck/tests/test_manifest_validator.py b/muranopkgcheck/tests/test_manifest_validator.py
index 0a22256..7760c39 100644
--- a/muranopkgcheck/tests/test_manifest_validator.py
+++ b/muranopkgcheck/tests/test_manifest_validator.py
@@ -59,6 +59,11 @@ class ManifestValidatorTests(helpers.BaseValidatorTestClass):
         self.g = self.mv._valid_require([1, 2, 3])
         self.assertIn('Require is not a dict type', next(self.g).message)
 
+    def test_wrong_require_fqn(self):
+        self.g = self.mv._valid_require({'io.murano!': '1.3.2'})
+        self.assertIn('Require key is not valid FQN "io.murano!"',
+                      next(self.g).message)
+
     def test_not_existing_file(self):
         data = {'org.openstack.Flow': 'FlowClassifier.yaml',
                 'org.openstack.Instance': 'Instance.yaml'}
diff --git a/muranopkgcheck/validators/manifest.py b/muranopkgcheck/validators/manifest.py
index e8d3c53..d2318c6 100644
--- a/muranopkgcheck/validators/manifest.py
+++ b/muranopkgcheck/validators/manifest.py
@@ -60,6 +60,11 @@ class ManifestValidator(base.YamlValidator):
     def _valid_require(self, value):
         if not isinstance(value, dict):
             yield error.report.E005('Require is not a dict type', value)
+            return
+        for fqn, ver in six.iteritems(value):
+            if not self._check_fqn_name(fqn):
+                yield error.report.E005('Require key is not valid FQN "{0}"'
+                                        .format(fqn), fqn)
 
     def _valid_type(self, value):
         if value not in ('Application', 'Library'):