diff --git a/code/lib/core-server/src/presets/common-preset.ts b/code/lib/core-server/src/presets/common-preset.ts
index fcb4b5681571..7e13ade9ddf0 100644
--- a/code/lib/core-server/src/presets/common-preset.ts
+++ b/code/lib/core-server/src/presets/common-preset.ts
@@ -195,7 +195,7 @@ export const features = async (
 });
 
 export const csfIndexer: Indexer = {
-  test: /\.stories\.(m?js|ts)x?$/,
+  test: /\.(stories|story)\.(m?js|ts)x?$/,
   index: async (fileName, options) => (await readCsf(fileName, options)).parse().indexInputs,
 };
 
diff --git a/code/lib/core-server/src/utils/StoryIndexGenerator.test.ts b/code/lib/core-server/src/utils/StoryIndexGenerator.test.ts
index 7110743b7003..b1097c168a86 100644
--- a/code/lib/core-server/src/utils/StoryIndexGenerator.test.ts
+++ b/code/lib/core-server/src/utils/StoryIndexGenerator.test.ts
@@ -99,6 +99,36 @@ describe('StoryIndexGenerator', () => {
         `);
       });
     });
+    describe('single file .story specifier', () => {
+      it('extracts stories from the right files', async () => {
+        const specifier: NormalizedStoriesSpecifier = normalizeStoriesEntry(
+          './src/F.story.ts',
+          options
+        );
+
+        const generator = new StoryIndexGenerator([specifier], options);
+        await generator.initialize();
+
+        expect(await generator.getIndex()).toMatchInlineSnapshot(`
+          Object {
+            "entries": Object {
+              "f--story-one": Object {
+                "id": "f--story-one",
+                "importPath": "./src/F.story.ts",
+                "name": "Story One",
+                "tags": Array [
+                  "autodocs",
+                  "story",
+                ],
+                "title": "F",
+                "type": "story",
+              },
+            },
+            "v": 4,
+          }
+        `);
+      });
+    });
     describe('non-recursive specifier', () => {
       it('extracts stories from the right files', async () => {
         const specifier: NormalizedStoriesSpecifier = normalizeStoriesEntry(
diff --git a/code/lib/core-server/src/utils/__mockdata__/src/F.story.ts b/code/lib/core-server/src/utils/__mockdata__/src/F.story.ts
new file mode 100644
index 000000000000..bb14d42c7112
--- /dev/null
+++ b/code/lib/core-server/src/utils/__mockdata__/src/F.story.ts
@@ -0,0 +1,7 @@
+const component = {};
+export default {
+  component,
+  tags: ['autodocs'],
+};
+
+export const StoryOne = {};