diff --git a/.changeset/curvy-sheep-grab.md b/.changeset/curvy-sheep-grab.md
new file mode 100644
index 0000000000..071365c7de
--- /dev/null
+++ b/.changeset/curvy-sheep-grab.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-techdocs': patch
+---
+
+Fixes left navigation positioning when using mkdocs blog plugin
diff --git a/plugins/techdocs/src/reader/transformers/styles/rules/layout.ts b/plugins/techdocs/src/reader/transformers/styles/rules/layout.ts
index 35dac279ca..590f2a114b 100644
--- a/plugins/techdocs/src/reader/transformers/styles/rules/layout.ts
+++ b/plugins/techdocs/src/reader/transformers/styles/rules/layout.ts
@@ -121,6 +121,10 @@ export default ({ theme, sidebar }: RuleOptions) => `
   margin-bottom: 50px;
 }
 
+.md-content > .md-sidebar {
+  left: 16rem;
+}
+
 .md-footer {
   position: fixed;
   bottom: 0px;