diff --git a/nf_core/pipelines/schema.py b/nf_core/pipelines/schema.py
index 520fbab949..b0feab0911 100644
--- a/nf_core/pipelines/schema.py
+++ b/nf_core/pipelines/schema.py
@@ -427,7 +427,8 @@ def validate_schema_title_description(self, schema=None):
             if "title" not in self.schema:
                 raise AssertionError("Schema missing top-level `title` attribute")
             # Validate that id, title and description match the pipeline manifest
-            id_attr = f"https://raw.githubusercontent.com/{self.pipeline_manifest['name'].strip('\"\'')}/main/nextflow_schema.json"
+            pipeline_name = self.pipeline_manifest["name"].strip("\"'")
+            id_attr = f"https://raw.githubusercontent.com/{pipeline_name}/main/nextflow_schema.json"
             if self.schema["$id"] not in [id_attr, id_attr.replace("/main/", "/master/")]:
                 raise AssertionError(
                     f"Schema `$id` should be `{id_attr}` or {id_attr.replace("/main/", "/master/")}. \n Found `{self.schema['$id']}`"