diff --git a/lib/utils/md-renderer.spec.ts b/lib/utils/md-renderer.spec.ts
index ec3ea647..9f944fba 100644
--- a/lib/utils/md-renderer.spec.ts
+++ b/lib/utils/md-renderer.spec.ts
@@ -11,14 +11,14 @@ describe('Utils', () => {
     it('should return a level-1 heading even though only level-2 is present', () => {
       mdRender.renderMd('## Sub Intro');
       Object.keys(mdRender.headings).length.should.be.equal(1);
-      should.exist(mdRender.headings['sub-intro']);
+      should.exist(mdRender.headings['Sub-Intro']);
     });
     it('should return a level-2 heading as a child of level-1', () => {
       mdRender.renderMd('# Introduction \n ## Sub Intro');
       Object.keys(mdRender.headings).length.should.be.equal(1);
-      should.exist(mdRender.headings['introduction']);
-      should.exist(mdRender.headings['introduction'].children);
-      Object.keys(mdRender.headings['introduction'].children).length.should.be.equal(1);
+      should.exist(mdRender.headings['Introduction']);
+      should.exist(mdRender.headings['Introduction'].children);
+      Object.keys(mdRender.headings['Introduction'].children).length.should.be.equal(1);
     });
   });
 });