diff --git a/anchor-markdown-header.js b/anchor-markdown-header.js
index ac7bdb1..506b529 100644
--- a/anchor-markdown-header.js
+++ b/anchor-markdown-header.js
@@ -27,7 +27,7 @@ function basicGithubId(text) {
     // CJK punctuations that are removed
     .replace(/[。？！，、；：“”【】（）〔〕［］﹃﹄“ ”‘’﹁﹂—…－～《》〈〉「」]/g, '')
     // latin-1 supplement chars that are removed
-    .replace(/[¡¢£¤¥¦§¨©«¬®¯±²³´¶·¸¹º»¼½¾¿]/g, '')
+    .replace(/[¡¢£¤¥¦§¨©«¬®¯°±²³´¶·¸¹»¼½¾¿]/g, '')
     ;
 
 }
diff --git a/test/anchor-markdown-header.js b/test/anchor-markdown-header.js
index a0653d7..aa15697 100644
--- a/test/anchor-markdown-header.js
+++ b/test/anchor-markdown-header.js
@@ -78,7 +78,7 @@ test('\ngenerating anchor in github mode', function (t) {
   , [ '_foo_bax_', null, '#foo_bax']
   , [ '10% off', null, '#10-off']
   , [ '1/2 affected', null, '#12-affected']
-  , [ '¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿Latin 1', null, '#%C2%AA%C2%B0%C2%B5latin-1']
+  , [ '¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿Latin 1', null, '#%C2%AA%C2%B5%C2%BAlatin-1']
 
   ].forEach(function (x) { check(x[0], x[1], x[2]) });
   t.end();