diff --git a/src/files/domain/models/FilePaginationInfo.ts b/src/files/domain/models/FilePaginationInfo.ts
index 5f0e1ddcc..fbef8d177 100644
--- a/src/files/domain/models/FilePaginationInfo.ts
+++ b/src/files/domain/models/FilePaginationInfo.ts
@@ -24,7 +24,7 @@ export class FilePaginationInfo {
 
   withPageSize(pageSize: number): FilePaginationInfo {
     const getNewPage = (oldPageSize: number, newPageSize: number) => {
-      const newPage = Math.ceil((this.page * oldPageSize) / newPageSize)
+      const newPage = Math.ceil(((this.page - 1) * oldPageSize + 1) / newPageSize)
       return newPage > 0 ? newPage : 1
     }
     return new FilePaginationInfo(getNewPage(this.pageSize, pageSize), pageSize, this.totalFiles)
diff --git a/tests/component/sections/dataset/dataset-files/DatasetFiles.spec.tsx b/tests/component/sections/dataset/dataset-files/DatasetFiles.spec.tsx
index 32cd4f0fe..77c287336 100644
--- a/tests/component/sections/dataset/dataset-files/DatasetFiles.spec.tsx
+++ b/tests/component/sections/dataset/dataset-files/DatasetFiles.spec.tsx
@@ -98,7 +98,7 @@ describe('DatasetFiles', () => {
 
       cy.findByLabelText('Files per page').select('25')
 
-      cy.findByRole('columnheader', { name: '26 to 50 of 200 Files' }).should('exist')
+      cy.findByRole('columnheader', { name: '1 to 25 of 200 Files' }).should('exist')
     })
 
     it('renders the files table with the correct header with a different page size ', () => {
@@ -116,6 +116,81 @@ describe('DatasetFiles', () => {
       cy.findByRole('columnheader', { name: '101 to 150 of 200 Files' }).should('exist')
     })
 
+    it('renders the first page if there is only one page and the user changes to a lower page size', () => {
+      const testFilesCountInfo = FilesCountInfoMother.create({
+        total: 32
+      })
+      fileRepository.getAllByDatasetPersistentId = cy.stub().resolves(testFiles)
+      fileRepository.getFilesCountInfoByDatasetPersistentId = cy.stub().resolves(testFilesCountInfo)
+      fileRepository.getFilesTotalDownloadSizeByDatasetPersistentId = cy.stub().resolves(19900)
+
+      cy.customMount(
+        <DatasetFiles
+          filesRepository={fileRepository}
+          datasetPersistentId={datasetPersistentId}
+          datasetVersion={datasetVersion}
+        />
+      )
+
+      cy.findByRole('button', { name: '1' }).should('not.exist')
+      cy.findByRole('button', { name: '2' }).should('exist')
+      cy.findByRole('button', { name: '3' }).should('exist')
+      cy.findByRole('button', { name: '4' }).should('exist')
+
+      cy.findByLabelText('Files per page').select('50')
+
+      cy.findByRole('button', { name: '1' }).should('not.exist')
+      cy.findByRole('button', { name: '2' }).should('not.exist')
+      cy.findByRole('button', { name: '3' }).should('not.exist')
+      cy.findByRole('columnheader', { name: '1 to 32 of 32 Files' }).should('exist')
+
+      cy.findByLabelText('Files per page').select('10')
+
+      cy.findByRole('button', { name: '1' }).should('not.exist')
+      cy.findByRole('button', { name: '2' }).should('exist')
+      cy.findByRole('button', { name: '3' }).should('exist')
+      cy.findByRole('button', { name: '4' }).should('exist')
+      cy.findByRole('columnheader', { name: '1 to 10 of 32 Files' }).should('exist')
+    })
+
+    it('renders the page that includes the first element of the current page when changing the page size', () => {
+      const testFilesCountInfo = FilesCountInfoMother.create({
+        total: 32
+      })
+      fileRepository.getAllByDatasetPersistentId = cy.stub().resolves(testFiles)
+      fileRepository.getFilesCountInfoByDatasetPersistentId = cy.stub().resolves(testFilesCountInfo)
+      fileRepository.getFilesTotalDownloadSizeByDatasetPersistentId = cy.stub().resolves(19900)
+
+      cy.customMount(
+        <DatasetFiles
+          filesRepository={fileRepository}
+          datasetPersistentId={datasetPersistentId}
+          datasetVersion={datasetVersion}
+        />
+      )
+
+      cy.findByRole('button', { name: '1' }).should('not.exist')
+      cy.findByRole('button', { name: '2' }).should('exist')
+      cy.findByRole('button', { name: '3' }).should('exist')
+      cy.findByRole('button', { name: '4' }).should('exist')
+
+      cy.findByLabelText('Files per page').select('25')
+
+      cy.findByRole('button', { name: '1' }).should('not.exist')
+      cy.findByRole('button', { name: '2' }).should('exist')
+      cy.findByRole('button', { name: '3' }).should('not.exist')
+      cy.findByRole('columnheader', { name: '1 to 25 of 32 Files' }).should('exist')
+
+      cy.findByRole('button', { name: '2' }).click()
+      cy.findByLabelText('Files per page').select('10')
+
+      cy.findByRole('button', { name: '1' }).should('exist')
+      cy.findByRole('button', { name: '2' }).should('exist')
+      cy.findByRole('button', { name: '3' }).should('not.exist')
+      cy.findByRole('button', { name: '4' }).should('exist')
+      cy.findByRole('columnheader', { name: '21 to 30 of 32 Files' }).should('exist')
+    })
+
     it('maintains the selection when the page changes', () => {
       cy.customMount(
         <DatasetFiles