diff --git a/tap_github/streams.py b/tap_github/streams.py
index 0f351cc0..7ae56741 100644
--- a/tap_github/streams.py
+++ b/tap_github/streams.py
@@ -1,6 +1,7 @@
 """Stream type classes for tap-github."""
 
 from typing import Any, Dict, Iterable, List, Optional
+
 from singer_sdk import typing as th  # JSON Schema typing helpers
 
 from tap_github.client import GitHubStream
@@ -675,6 +676,18 @@ def get_url_params(
         params["state"] = "all"
         return params
 
+    def get_child_context(self, record: dict, context: Optional[dict]) -> dict:
+        """
+        Give the PR number to children streams
+        """
+
+        return {
+            **super().get_child_context(record, context),
+            **{
+                "pull_number": record["number"],
+            },
+        }
+
     @property
     def http_headers(self) -> dict:
         """Return the http headers needed.
@@ -906,6 +919,35 @@ def http_headers(self) -> dict:
     ).to_dict()
 
 
+class PullRequestFilesStream(GitHubStream):
+    """Defines 'PullRequestFiles' stream."""
+
+    name = "pull_request_files"
+    path = "/repos/{org}/{repo}/pulls/{pull_number}/files"
+    state_partitioning_keys = ["repo", "org", "pull_number"]
+    primary_keys = state_partitioning_keys + ["filename"]
+    parent_stream_type = PullRequestsStream
+    ignore_parent_replication_key = False
+
+    schema = th.PropertiesList(
+        # Keys
+        th.Property("repo", th.StringType),
+        th.Property("org", th.StringType),
+        th.Property("pull_number", th.IntegerType),
+        th.Property("filename", th.StringType),
+        # Rest
+        th.Property("sha", th.StringType),
+        th.Property("status", th.StringType),
+        th.Property("additions", th.IntegerType),
+        th.Property("deletions", th.IntegerType),
+        th.Property("changes", th.IntegerType),
+        th.Property("blob_url", th.StringType),
+        th.Property("raw_url", th.StringType),
+        th.Property("contents_url", th.StringType),
+        th.Property("patch", th.StringType),
+    ).to_dict()
+
+
 class StargazersStream(GitHubStream):
     """Defines 'Stargazers' stream. Warning: this stream does NOT track star deletions."""
 
diff --git a/tap_github/tap.py b/tap_github/tap.py
index d1fc1ebe..4f01cae7 100644
--- a/tap_github/tap.py
+++ b/tap_github/tap.py
@@ -12,6 +12,7 @@
     IssueEventsStream,
     IssuesStream,
     PullRequestsStream,
+    PullRequestFilesStream,
     ReadmeStream,
     RepositoryStream,
     StargazersStream,
@@ -51,6 +52,7 @@ def discover_streams(self) -> List[Stream]:
             IssueEventsStream(tap=self),
             IssuesStream(tap=self),
             PullRequestsStream(tap=self),
+            PullRequestFilesStream(tap=self),
             ReadmeStream(tap=self),
             RepositoryStream(tap=self),
             StargazersStream(tap=self),