diff --git a/ci/requirements-2.7_DOC_BUILD.run b/ci/requirements-2.7_DOC_BUILD.run
index 507ce9ea5aac5..b87a41df4191d 100644
--- a/ci/requirements-2.7_DOC_BUILD.run
+++ b/ci/requirements-2.7_DOC_BUILD.run
@@ -1,7 +1,9 @@
 ipython
+ipykernel
 sphinx
 nbconvert
 nbformat
+notebook
 matplotlib
 scipy
 lxml
diff --git a/doc/make.py b/doc/make.py
index 8e7b1d95dbafb..d46be2611ce3d 100755
--- a/doc/make.py
+++ b/doc/make.py
@@ -193,7 +193,8 @@ def html():
                 executed = execute_nb(nb, nb + '.executed', allow_errors=True,
                                       kernel_name=kernel_name)
                 convert_nb(executed, nb.rstrip('.ipynb') + '.html')
-            except (ImportError, IndexError):
+            except (ImportError, IndexError) as e:
+                print(e)
                 print("Failed to convert %s" % nb)
 
     if os.system('sphinx-build -P -b html -d build/doctrees '