diff --git a/packages/mermaid/src/utils.spec.ts b/packages/mermaid/src/utils.spec.ts
index 60055fe44..8ccf5b210 100644
--- a/packages/mermaid/src/utils.spec.ts
+++ b/packages/mermaid/src/utils.spec.ts
@@ -1,7 +1,5 @@
 import { vi } from 'vitest';
 import utils, { calculatePoint, cleanAndMerge, detectDirective } from './utils.js';
-import { getSubGraphTitleMargins } from './utils/subGraphTitleMargins.js';
-import * as configApi from './config.js';
 import assignWithDepth from './assignWithDepth.js';
 import { detectType } from './diagram-api/detectType.js';
 import { addDiagrams } from './diagram-api/diagram-orchestration.js';
@@ -596,23 +594,3 @@ describe('calculatePoint', () => {
     );
   });
 });
-
-describe('getSubGraphTitleMargins', () => {
-  it('should get subgraph title margins after config has been set', () => {
-    const config_0 = {
-      flowchart: {
-        subGraphTitleMargin: {
-          top: 10,
-          bottom: 5,
-        },
-      },
-    };
-
-    configApi.setSiteConfig(config_0);
-    expect(getSubGraphTitleMargins(config_0)).toEqual({
-      subGraphTitleTopMargin: 10,
-      subGraphTitleBottomMargin: 5,
-      subGraphTitleTotalMargin: 15,
-    });
-  });
-});
diff --git a/packages/mermaid/src/utils/subGraphTitleMargins.spec.ts b/packages/mermaid/src/utils/subGraphTitleMargins.spec.ts
new file mode 100644
index 000000000..c607f8bce
--- /dev/null
+++ b/packages/mermaid/src/utils/subGraphTitleMargins.spec.ts
@@ -0,0 +1,22 @@
+import { getSubGraphTitleMargins } from './subGraphTitleMargins.js';
+import * as configApi from '../config.js';
+
+describe('getSubGraphTitleMargins', () => {
+  it('should get subgraph title margins after config has been set', () => {
+    const config_0 = {
+      flowchart: {
+        subGraphTitleMargin: {
+          top: 10,
+          bottom: 5,
+        },
+      },
+    };
+
+    configApi.setSiteConfig(config_0);
+    expect(getSubGraphTitleMargins(config_0)).toEqual({
+      subGraphTitleTopMargin: 10,
+      subGraphTitleBottomMargin: 5,
+      subGraphTitleTotalMargin: 15,
+    });
+  });
+});