diff --git a/packages/filter-by-workspace-path/README.md b/packages/filter-by-workspace-path/README.md
index 97f3c49..a7cfda9 100644
--- a/packages/filter-by-workspace-path/README.md
+++ b/packages/filter-by-workspace-path/README.md
@@ -17,14 +17,17 @@ To start using this plugin, add it to your `.autorc` config, for example:
 }
 ```
 
-If you are using this for NPM workspaces/sub-packages, then add this configuration to each workspace. Then run e.g. `auto changelog` from 
-each workspace directory. Observe that commits with only files from directories outside the workspace directory are omitted.
+Then, if your project uses NPM workspaces and you run e.g. `auto changelog` not from the root directory, but directly from a workspace
+directory, then the changelog will only include pull requests that contain files inside the current workspace directory.
 
 However, carefully read the following caveats section.
 
 ## Caveats
 
-* Note that this plugin also ommits commits that are either labeled with `skip-release` or have `[skip ci]` in their commit message.
+* Note that this plugin also ommits commits that
+  * do not have a related pull request (e.g. pushed directly to the release branch)
+  * belong to pull requests that has the `skip-release` label attached
+  * have `[skip ci]` in their commit message
 * By default, `auto version` seems to set the version to `patch` instead of `noVersion` even if all commits were filtered out.
   * Therefore, to detect if there were no changes in this case, you have to use the `auto changelog` command instead and then check whether
     a changelog was actually generated. :-/
diff --git a/packages/filter-by-workspace-path/src/index.ts b/packages/filter-by-workspace-path/src/index.ts
index ccbff05..efd776c 100644
--- a/packages/filter-by-workspace-path/src/index.ts
+++ b/packages/filter-by-workspace-path/src/index.ts
@@ -4,6 +4,10 @@ import { execSync } from 'child_process'
 import * as path from 'path'
 
 function shouldOmitCommit(currentDir: string, currentWorkspace: string, commit: IExtendedCommit, logger: ILogger): boolean {
+  if (!commit.pullRequest) {
+    return true
+  }
+
   // auto adds the current path to the file paths reported from git, so we need to undo this
   const fixedFiles = commit.files.map((file) => path.relative(currentDir, file))
   const wsDir = path.join(currentWorkspace, path.sep)
diff --git a/packages/filter-by-workspace-path/test/index.spec.ts b/packages/filter-by-workspace-path/test/index.spec.ts
index 97b4287..3b89386 100644
--- a/packages/filter-by-workspace-path/test/index.spec.ts
+++ b/packages/filter-by-workspace-path/test/index.spec.ts
@@ -26,25 +26,31 @@ const setup = () => {
 describe('Omit Commits Plugin', () => {
   it('should not filter the commit single file', async () => {
     const hooks = setup()
-    const commit = makeCommitFromMsg('foo', { files: [path.resolve('.', 'packages/filter-by-workspace-path/src/index.ts')] })
+    const commit = makeCommitFromMsg('foo', {
+      pullRequest: { number: 1 },
+      files: [path.resolve('.', 'packages/filter-by-workspace-path/src/index.ts')],
+    })
     expect(await hooks.omitCommit.promise(commit)).toBeUndefined()
   })
 
   it('should filter the commit single file', async () => {
     const hooks = setup()
-    const commit = makeCommitFromMsg('foo', { files: ['/outside'] })
+    const commit = makeCommitFromMsg('foo', { pullRequest: { number: 1 }, files: ['/outside'] })
     expect(await hooks.omitCommit.promise(commit)).toBe(true)
   })
 
   it('should not filter the commit multi file', async () => {
     const hooks = setup()
-    const commit = makeCommitFromMsg('foo', { files: [path.resolve('.', 'packages/filter-by-workspace-path/src/index.ts'), '/outside'] })
+    const commit = makeCommitFromMsg('foo', {
+      pullRequest: { number: 1 },
+      files: [path.resolve('.', 'packages/filter-by-workspace-path/src/index.ts'), '/outside'],
+    })
     expect(await hooks.omitCommit.promise(commit)).toBeUndefined()
   })
 
   it('should filter the commit single file', async () => {
     const hooks = setup()
-    const commit = makeCommitFromMsg('foo', { files: ['/outside', '/anotheroutsider'] })
+    const commit = makeCommitFromMsg('foo', { pullRequest: { number: 1 }, files: ['/outside', '/anotheroutsider'] })
     expect(await hooks.omitCommit.promise(commit)).toBe(true)
   })
 
@@ -52,6 +58,7 @@ describe('Omit Commits Plugin', () => {
     const hooks = setup()
     const commit = makeCommitFromMsg('foo', {
       labels: ['skip-release'],
+      pullRequest: { number: 1 },
       files: [path.resolve('.', 'packages/filter-by-workspace-path/src/index.ts')],
     })
     expect(await hooks.omitCommit.promise(commit)).toBe(true)
@@ -60,6 +67,7 @@ describe('Omit Commits Plugin', () => {
   it('should skip commit marked as skip-ci', async () => {
     const hooks = setup()
     const commit = makeCommitFromMsg('foo [skip ci]', {
+      pullRequest: { number: 1 },
       files: [path.resolve('.', 'packages/filter-by-workspace-path/src/index.ts')],
     })
     expect(await hooks.omitCommit.promise(commit)).toBe(true)
@@ -67,7 +75,18 @@ describe('Omit Commits Plugin', () => {
 
   it('should skip commit in a sub-directory with the same prefix', async () => {
     const hooks = setup()
-    const commit = makeCommitFromMsg('foo', { files: [path.resolve('.', 'packages/filter-by-workspace-path-sub-dir/src/index.ts')] })
+    const commit = makeCommitFromMsg('foo', {
+      pullRequest: { number: 1 },
+      files: [path.resolve('.', 'packages/filter-by-workspace-path-sub-dir/src/index.ts')],
+    })
+    expect(await hooks.omitCommit.promise(commit)).toBe(true)
+  })
+
+  it('should skip commits without related pull request', async () => {
+    const hooks = setup()
+    const commit = makeCommitFromMsg('foo', {
+      files: [path.resolve('.', 'packages/filter-by-workspace-path/src/index.ts')],
+    })
     expect(await hooks.omitCommit.promise(commit)).toBe(true)
   })
 })