diff --git a/nextflow.config b/nextflow.config
index e70c06529..c2c682e86 100644
--- a/nextflow.config
+++ b/nextflow.config
@@ -356,10 +356,10 @@ validation {
 """
         afterText = """${manifest.doi ? "* The pipeline\n" : ""}${manifest.doi.tokenize(",").collect { "  https://doi.org/${it.trim().replace('https://doi.org/','')}"}.join("\n")}${manifest.doi ? "\n" : ""}
 * The nf-core framework
-  https://doi.org/10.1038/s41587-020-0439-x
+    https://doi.org/10.1038/s41587-020-0439-x
 
 * Software dependencies
-  https://github.com/${manifest.name}/blob/master/CITATIONS.md
+    https://github.com/${manifest.name}/blob/master/CITATIONS.md
 """
     }
     summary {