diff --git a/readthedocs/doc_builder/backends/asciidoc.py b/readthedocs/doc_builder/backends/asciidoc.py
deleted file mode 100644
index eac8de3e37c..00000000000
--- a/readthedocs/doc_builder/backends/asciidoc.py
+++ /dev/null
@@ -1,29 +0,0 @@
-import os
-import logging
-
-from readthedocs.doc_builder.base import BaseBuilder, restoring_chdir
-from readthedocs.projects.utils import run
-
-log = logging.getLogger(__name__)
-
-class Builder(BaseBuilder):
-    """
-    Ascii Doctor builder
-    """
-    type = 'asciidoc'
-
-    def __init__(self, *args, **kwargs):
-        super(BaseBuilder, self).__init__(*args, **kwargs)
-        self.old_artifact_path = os.path.join(self.version.project.checkout_path(self.version.slug), 'site')
-
-    @restoring_chdir
-    def build(self, **kwargs):
-        project = self.version.project
-        os.chdir(project.checkout_path(self.version.slug))
-        results = {}
-        build_command = "%s build " % (
-            project.venv_bin(version=self.version.slug,
-                             bin='asciidoctor')
-            )
-        results['html'] = run(build_command, shell=True)
-        return results