diff --git a/.changeset/six-spiders-sell.md b/.changeset/six-spiders-sell.md
new file mode 100644
index 000000000..20aeeda2b
--- /dev/null
+++ b/.changeset/six-spiders-sell.md
@@ -0,0 +1,5 @@
+---
+'typedoc-plugin-markdown': patch
+---
+
+- Fix missing slash when public path is prefixed with http (#688)
diff --git a/packages/typedoc-plugin-markdown/src/theme/markdown-themeContext.ts b/packages/typedoc-plugin-markdown/src/theme/markdown-themeContext.ts
index fab7212da..399a7fb63 100644
--- a/packages/typedoc-plugin-markdown/src/theme/markdown-themeContext.ts
+++ b/packages/typedoc-plugin-markdown/src/theme/markdown-themeContext.ts
@@ -138,7 +138,10 @@ export class MarkdownThemeContext {
       const publicPath = this.options.getValue('publicPath');
 
       if (publicPath && !ignorePublicPath) {
-        return encodeURI(path.join(publicPath, url).replace(/\\/g, '/'));
+        return encodeURI(`${publicPath.replace(/\/$/, '')}/${url}`).replace(
+          /\\/g,
+          '/',
+        );
       }
 
       const baseUrl = path.relative(
diff --git a/packages/typedoc-plugin-markdown/test/fixtures/config.ts b/packages/typedoc-plugin-markdown/test/fixtures/config.ts
index abb9b2314..44bd7979e 100644
--- a/packages/typedoc-plugin-markdown/test/fixtures/config.ts
+++ b/packages/typedoc-plugin-markdown/test/fixtures/config.ts
@@ -152,7 +152,7 @@ const config: Record<string, Fixture> = {
       {
         useHTMLAnchors: true,
         preserveAnchorCasing: true,
-        publicPath: 'http://example.com',
+        publicPath: 'https://example.com',
         sanitizeComments: true,
         flattenOutputFiles: true,
         enumMembersFormat: 'htmlTable',
diff --git a/packages/typedoc-plugin-markdown/test/specs/__snapshots__/comments.spec.ts.snap b/packages/typedoc-plugin-markdown/test/specs/__snapshots__/comments.spec.ts.snap
index 23feca1df..8fd9a2a86 100644
--- a/packages/typedoc-plugin-markdown/test/specs/__snapshots__/comments.spec.ts.snap
+++ b/packages/typedoc-plugin-markdown/test/specs/__snapshots__/comments.spec.ts.snap
@@ -351,7 +351,7 @@ exports[`Comments should get tables for properties: (Output File Strategy "membe
 
 ## Extends
 
-- [\`BaseClassProperties\`](http:/example.com/Class.BaseClassProperties.md)
+- [\`BaseClassProperties\`](https://example.com/Class.BaseClassProperties.md)
 
 ## Constructors
 
@@ -359,15 +359,15 @@ exports[`Comments should get tables for properties: (Output File Strategy "membe
 
 ### new ClassPropertiesTable()
 
-> **new ClassPropertiesTable**(): [\`ClassPropertiesTable\`](http:/example.com/Class.ClassPropertiesTable.md)
+> **new ClassPropertiesTable**(): [\`ClassPropertiesTable\`](https://example.com/Class.ClassPropertiesTable.md)
 
 #### Returns
 
-[\`ClassPropertiesTable\`](http:/example.com/Class.ClassPropertiesTable.md)
+[\`ClassPropertiesTable\`](https://example.com/Class.ClassPropertiesTable.md)
 
 #### Inherited from
 
-[\`BaseClassProperties\`](http:/example.com/Class.BaseClassProperties.md).[\`constructor\`](http:/example.com/Class.BaseClassProperties.md#Constructors)
+[\`BaseClassProperties\`](https://example.com/Class.BaseClassProperties.md).[\`constructor\`](https://example.com/Class.BaseClassProperties.md#Constructors)
 
 ## Properties