diff --git a/eve_mongoengine/schema.py b/eve_mongoengine/schema.py
index 739ac05..d230349 100644
--- a/eve_mongoengine/schema.py
+++ b/eve_mongoengine/schema.py
@@ -91,7 +91,7 @@ def create_schema(cls, model_cls, lowercase=True):
         for field in model_cls._fields.values():
             if field.primary_key:
                 # defined custom primary key -> fail, cos eve doesnt support it
-                raise SchemaException("Custom primery key not allowed - eve "
+                raise SchemaException("Custom primary key not allowed - eve "
                                       "does not support different id fields "
                                       "for resources.")
             fname = field.db_field