diff --git a/c3.js b/c3.js
index 7f6b76c..dd0ce32 100644
--- a/c3.js
+++ b/c3.js
@@ -706,7 +706,7 @@
                         domain = this.orgDomain();
                         return [domain[0], domain[1] + 1];
                     }
-					orgXDomain = domain;
+                    orgXDomain = domain;
                     _scale.domain(domain);
                     return scale;
                 };