diff --git a/cypress.config.ts b/cypress.config.ts
index 30b50e2..17980e9 100644
--- a/cypress.config.ts
+++ b/cypress.config.ts
@@ -17,6 +17,9 @@ export default defineConfig({
       toConsole: false,
     },
     video: false,
+    env: {
+      cyTagsShowTagsInTitle: false,
+    },
 
     setupNodeEvents(on, config) {
       setupPlugins(on, config);
diff --git a/integration/e2e/suite-example.test.ts b/integration/e2e/suite-example.test.ts
new file mode 100644
index 0000000..ab3edc2
--- /dev/null
+++ b/integration/e2e/suite-example.test.ts
@@ -0,0 +1,70 @@
+describe('cyTagsShowTagsInTitle', () => {
+  describe('is false', () => {
+    describe('suite with tag @suiteTag', () => {
+      describe('suite with tag @apple', () => {
+        it('test @tag', function () {
+          cy.log(`cyTagsShowTagsInTitle ${Cypress.env('cyTagsShowTagsInTitle')}`);
+
+          if (Cypress.env('cyTagsShowTagsInTitle') === 'false' || Cypress.env('cyTagsShowTagsInTitle') === false) {
+            expect(this.test?.tags).deep.eq([
+              { tag: '@tag', info: [] },
+              { tag: '@apple', info: [] },
+              { tag: '@suiteTag', info: [] },
+            ]);
+            expect(this.test?.title).eq('test');
+            expect(this.test?.fullTitle()).eq('cyTagsShowTagsInTitle is false suite with tag suite with tag test');
+          } else {
+            this.skip();
+          }
+        });
+      });
+    });
+  });
+
+  describe('is true', () => {
+    describe('suite with tag @suiteTag', () => {
+      describe('suite with tag @apple', () => {
+        it('test @tag', function () {
+          cy.log(`cyTagsShowTagsInTitle ${Cypress.env('cyTagsShowTagsInTitle')}`);
+
+          if (Cypress.env('cyTagsShowTagsInTitle') === 'true' || Cypress.env('cyTagsShowTagsInTitle') === true) {
+            expect(this.test?.tags).deep.eq([
+              { tag: '@tag', info: [] },
+              { tag: '@apple', info: [] },
+              { tag: '@suiteTag', info: [] },
+            ]);
+            expect(this.test?.title).eq('test@tag');
+            expect(this.test?.fullTitle()).eq(
+              'cyTagsShowTagsInTitle is true suite with tag @suiteTag suite with tag @apple @suiteTag test@tag',
+            );
+          } else {
+            this.skip();
+          }
+        });
+      });
+    });
+  });
+  describe('is undefined', () => {
+    describe('suite with tag @suiteTag', () => {
+      describe('suite with tag @apple', () => {
+        it('test @tag', function () {
+          cy.log(`cyTagsShowTagsInTitle ${Cypress.env('cyTagsShowTagsInTitle')}`);
+
+          if (Cypress.env('cyTagsShowTagsInTitle') === undefined) {
+            expect(this.test?.tags).deep.eq([
+              { tag: '@tag', info: [] },
+              { tag: '@apple', info: [] },
+              { tag: '@suiteTag', info: [] },
+            ]);
+            expect(this.test?.title).eq('test @tag');
+            expect(this.test?.fullTitle()).eq(
+              'cyTagsShowTagsInTitle is undefined suite with tag @suiteTag suite with tag @apple test @tag',
+            );
+          } else {
+            this.skip();
+          }
+        });
+      });
+    });
+  });
+});
diff --git a/src/mocha/index.ts b/src/mocha/index.ts
index 9003c80..b034a6a 100644
--- a/src/mocha/index.ts
+++ b/src/mocha/index.ts
@@ -6,6 +6,10 @@ namespace Mocha {
     tags?: GrepTagObject[];
   }
 
+  export interface Suite {
+    tags?: GrepTagObject[];
+  }
+
   export interface Runnable {
     tags?: GrepTagObject[];
   }
diff --git a/src/setup/index.ts b/src/setup/index.ts
index 7cc2b12..7072df3 100644
--- a/src/setup/index.ts
+++ b/src/setup/index.ts
@@ -80,6 +80,7 @@ export const registerTags = () => {
    */
   const suiteTitleChange = (rootSuite: Mocha.Suite, setting: { showTagsInTitle?: boolean }) => {
     const suiteTags = parseAll(rootSuite, []);
+    rootSuite.tags = uniqTags([...suiteTags, ...(rootSuite.tags ?? [])]);
 
     if (setting.showTagsInTitle !== undefined) {
       rootSuite.title = removeTagsFromTitle(rootSuite.title);
@@ -125,10 +126,10 @@ export const registerTags = () => {
       suite.eachTest(st => {
         testProcess(st);
       });
-    }
 
-    if (showTagsInTitle() !== undefined) {
-      suiteTitleChange(suite, { showTagsInTitle: showTagsInTitle() });
+      if (showTagsInTitle() !== undefined) {
+        suiteTitleChange(suite, { showTagsInTitle: showTagsInTitle() });
+      }
     }
 
     return suite;