diff --git a/mellon/templates/mellon/metadata.xml b/mellon/templates/mellon/metadata.xml
index ba68aa2..b5051e6 100644
--- a/mellon/templates/mellon/metadata.xml
+++ b/mellon/templates/mellon/metadata.xml
@@ -10,9 +10,7 @@
        <KeyDescriptor>
            <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
                <ds:X509Data>
-                   <ds:X509Certificate>
-                   {{ public_key }}
-                   </ds:X509Certificate>
+                   <ds:X509Certificate>{{ public_key }}</ds:X509Certificate>
                </ds:X509Data>
            </ds:KeyInfo>
        </KeyDescriptor>