diff --git a/nikola/data/themes/base-jinja/bundles b/nikola/data/themes/base-jinja/bundles
deleted file mode 100644
index 476018197c..0000000000
--- a/nikola/data/themes/base-jinja/bundles
+++ /dev/null
@@ -1,2 +0,0 @@
-assets/css/all.css=rst.css,code.css,theme.css
-assets/css/all-nocdn.css=rst.css,code.css,theme.css
diff --git a/nikola/data/themes/base/bundles b/nikola/data/themes/base/bundles
index d87b458260..476018197c 100644
--- a/nikola/data/themes/base/bundles
+++ b/nikola/data/themes/base/bundles
@@ -1,2 +1,2 @@
-assets/css/all.css=rst.css,code.css,theme.css,custom.css
-assets/css/all-nocdn.css=rst.css,code.css,theme.css,custom.css
+assets/css/all.css=rst.css,code.css,theme.css
+assets/css/all-nocdn.css=rst.css,code.css,theme.css