diff --git a/pype/settings/entities/root_entities.py b/pype/settings/entities/root_entities.py
index 82885e8479..2d33689697 100644
--- a/pype/settings/entities/root_entities.py
+++ b/pype/settings/entities/root_entities.py
@@ -13,11 +13,15 @@ from .lib import (
     get_studio_settings_schema,
     get_project_settings_schema
 )
-from .exceptions import EntitySchemaError
+from .exceptions import (
+    EntitySchemaError,
+    InvalidKeySymbols
+)
 from pype.settings.constants import (
     SYSTEM_SETTINGS_KEY,
     PROJECT_SETTINGS_KEY,
-    PROJECT_ANATOMY_KEY
+    PROJECT_ANATOMY_KEY,
+    KEY_REGEX
 )
 
 from pype.settings.lib import (
@@ -153,6 +157,10 @@ class RootEntity(BaseItemEntity):
                 raise EntitySchemaError(self, reason)
             child_entity.schema_validations()
 
+        for key in self.non_gui_children.keys():
+            if not KEY_REGEX.match(key):
+                raise InvalidKeySymbols(self.path, key)
+
     def get_entity_from_path(self, path):
         """Return system settings entity."""
         raise NotImplementedError((