diff --git a/flasgger/base.py b/flasgger/base.py
diff --git a/flasgger/utils.py b/flasgger/utils.py
@@ -64,7 +64,7 @@ def get_schema_specs(schema_id, swagger):
                 return swag
 
 
-def get_specs(rules, ignore_verbs, optional_fields, sanitizer):
+def get_specs(rules, ignore_verbs, optional_fields, sanitizer, doc_dir=None):
 
     specs = []
     for rule in rules:
@@ -129,6 +129,19 @@ def get_specs(rules, ignore_verbs, optional_fields, sanitizer):
 
                 swagged = True
 
+            if doc_dir:
+                if view_class:
+                    file_path = os.path.join(
+                        doc_dir, endpoint.__name__, method.__name__ + '.yml')
+                else:
+                    file_path = os.path.join(
+                        doc_dir, endpoint.__name__ + '.yml')
+                if os.path.isfile(file_path):
+                    func = method.__func__ \
+                        if hasattr(method, '__func__') else method
+                    setattr(func, 'swag_type', 'yml')
+                    setattr(func, 'swag_path', file_path)
+
             doc_summary, doc_description, doc_swag = parse_docstring(
                 method, sanitizer, endpoint=rule.endpoint, verb=verb)