diff --git a/lib/rules_block/list.js b/lib/rules_block/list.js
index 585f51d..41521ea 100644
--- a/lib/rules_block/list.js
+++ b/lib/rules_block/list.js
@@ -179,9 +179,7 @@ module.exports = function list(state, startLine, endLine, silent) {
 
   if (isOrdered) {
     token       = state.push('ordered_list_open', 'ol', 1);
-    if (markerValue !== 1) {
-      token.attrs = [ [ 'start', markerValue ] ];
-    }
+    token.attrs = [ [ 'start', markerValue ] ];
 
   } else {
     token       = state.push('bullet_list_open', 'ul', 1);
diff --git a/test/fixtures/commonmark/good.txt b/test/fixtures/commonmark/good.txt
index 4b1766d..d434782 100644
--- a/test/fixtures/commonmark/good.txt
+++ b/test/fixtures/commonmark/good.txt
@@ -964,7 +964,7 @@ src line: 1417
 
     - bar
 .
-<ol>
+<ol start="1">
 <li>
 <p>foo</p>
 <ul>
@@ -2900,7 +2900,7 @@ src line: 3669
 
     > A block quote.
 .
-<ol>
+<ol start="1">
 <li>
 <p>A paragraph
 with two lines.</p>
@@ -2984,7 +2984,7 @@ src line: 3763
 .
 <blockquote>
 <blockquote>
-<ol>
+<ol start="1">
 <li>
 <p>one</p>
 <p>two</p>
@@ -3055,7 +3055,7 @@ src line: 3839
 
     > bam
 .
-<ol>
+<ol start="1">
 <li>
 <p>foo</p>
 <pre><code>bar
@@ -3203,7 +3203,7 @@ src line: 4002
 
        more code
 .
-<ol>
+<ol start="1">
 <li>
 <pre><code>indented code
 </code></pre>
@@ -3224,7 +3224,7 @@ src line: 4024
 
        more code
 .
-<ol>
+<ol start="1">
 <li>
 <pre><code> indented code
 </code></pre>
@@ -3367,7 +3367,7 @@ src line: 4190
 2.
 3. bar
 .
-<ol>
+<ol start="1">
 <li>foo</li>
 <li></li>
 <li>bar</li>
@@ -3412,7 +3412,7 @@ src line: 4237
 
      > A block quote.
 .
-<ol>
+<ol start="1">
 <li>
 <p>A paragraph
 with two lines.</p>
@@ -3436,7 +3436,7 @@ src line: 4261
 
       > A block quote.
 .
-<ol>
+<ol start="1">
 <li>
 <p>A paragraph
 with two lines.</p>
@@ -3460,7 +3460,7 @@ src line: 4285
 
        > A block quote.
 .
-<ol>
+<ol start="1">
 <li>
 <p>A paragraph
 with two lines.</p>
@@ -3504,7 +3504,7 @@ with two lines.
 
       > A block quote.
 .
-<ol>
+<ol start="1">
 <li>
 <p>A paragraph
 with two lines.</p>
@@ -3524,7 +3524,7 @@ src line: 4363
   1.  A paragraph
     with two lines.
 .
-<ol>
+<ol start="1">
 <li>A paragraph
 with two lines.</li>
 </ol>
@@ -3538,7 +3538,7 @@ src line: 4376
 continued here.
 .
 <blockquote>
-<ol>
+<ol start="1">
 <li>
 <blockquote>
 <p>Blockquote
@@ -3557,7 +3557,7 @@ src line: 4393
 > continued here.
 .
 <blockquote>
-<ol>
+<ol start="1">
 <li>
 <blockquote>
 <p>Blockquote
@@ -3663,7 +3663,7 @@ src line: 4507
 .
 1. - 2. foo
 .
-<ol>
+<ol start="1">
 <li>
 <ul>
 <li>
@@ -3720,7 +3720,7 @@ src line: 4777
 2. bar
 3) baz
 .
-<ol>
+<ol start="1">
 <li>foo</li>
 <li>bar</li>
 </ol>
@@ -3763,7 +3763,7 @@ The number of windows in my house is
 1.  The number of doors is 6.
 .
 <p>The number of windows in my house is</p>
-<ol>
+<ol start="1">
 <li>The number of doors is 6.</li>
 </ol>
 .
@@ -3907,7 +3907,7 @@ src line: 5025
 
     3. c
 .
-<ol>
+<ol start="1">
 <li>
 <p>a</p>
 </li>
@@ -4135,7 +4135,7 @@ src line: 5257
 
    bar
 .
-<ol>
+<ol start="1">
 <li>
 <pre><code>foo
 </code></pre>
diff --git a/test/fixtures/markdown-it/commonmark_extras.txt b/test/fixtures/markdown-it/commonmark_extras.txt
index 705c003..5cc4903 100644
--- a/test/fixtures/markdown-it/commonmark_extras.txt
+++ b/test/fixtures/markdown-it/commonmark_extras.txt
@@ -449,7 +449,7 @@ Coverage. Tabs in lists.
 
 	     bar
 .
-<ol>
+<ol start="1">
 <li>
 <p>foo</p>
 <pre><code> bar