diff --git a/src/index.js b/src/index.js
index 9972b01..ea37ea8 100644
--- a/src/index.js
+++ b/src/index.js
@@ -104,7 +104,7 @@ class JupyterConverter {
       }
       return cells
     }
-    if (nodeName === 'example') {
+    if (nodeName === 'example' || nodeName === 'sidebar') {
       const blocks = node.getBlocks()
       const cells = []
       let lastCell = {}
diff --git a/test/converter.spec.js b/test/converter.spec.js
index 6b39ada..613705c 100644
--- a/test/converter.spec.js
+++ b/test/converter.spec.js
@@ -360,7 +360,6 @@ He could hear doves **cooing** in the pine trees’ branches.
       to_file: false
     })
     expect(result).is.not.empty()
-    debug()
     const ipynb = JSON.parse(result)
     expect(ipynb.cells[0].source.join('')).is.equal(`[Refcard](refcard.pdf)
 
@@ -368,4 +367,25 @@ He could hear doves **cooing** in the pine trees’ branches.
 `)
     await debug(result, 'xrefs.ipynb')
   })
+  it('should convert nested blocks', async () => {
+    const inputFile = path.join(__dirname, 'fixtures', 'nested-blocks.adoc')
+    const result = asciidoctor.convertFile(inputFile, {
+      safe: 'safe',
+      backend: 'jupyter',
+      to_file: false
+    })
+    expect(result).is.not.empty()
+    const ipynb = JSON.parse(result)
+    expect(ipynb.cells[0].source.join('')).is.equal(`# Nested Blocks
+
+*Title*\\
+Example…​
+
+
+$$
+A_1=\\left(\\begin{array}{lll}
+$$
+`)
+    await debug(result, 'nested-blocks.ipynb')
+  })
 })
diff --git a/test/fixtures/nested-blocks.adoc b/test/fixtures/nested-blocks.adoc
new file mode 100644
index 0000000..ec52fda
--- /dev/null
+++ b/test/fixtures/nested-blocks.adoc
@@ -0,0 +1,11 @@
+= Nested Blocks
+
+.Title
+[.style]
+****
+Example...
+[stem]
+++++
+A_1=\left(\begin{array}{lll}
+++++
+****