diff --git a/ChangeLog b/ChangeLog
index dcbed39..52dfab2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -15,8 +15,8 @@ Version 1.0.0
     - Ignore unknown service types in key records (LP: #1847020)
       - This is required by RFC 6376 and predecessors.  It becomes important
         now that RFC 8460, which defines a new DKIM service type exists.  This
-	change is required to avoid processing tlsrpt keys like regular email
-	keys, which is incorrect, they have different requirements.
+        change is required to avoid processing tlsrpt keys like regular email
+        keys, which is incorrect, they have different requirements.
 
 2019-09-25 Verstion 0.9.4
     - Add LICENSE to MANIFEST.in so it is included in the tarball (LP: