diff --git a/tools_webrtc/presubmit_checks_lib/check_orphan_headers.py b/tools_webrtc/presubmit_checks_lib/check_orphan_headers.py
index 04291669eb..31be7196ba 100644
--- a/tools_webrtc/presubmit_checks_lib/check_orphan_headers.py
+++ b/tools_webrtc/presubmit_checks_lib/check_orphan_headers.py
@@ -20,7 +20,7 @@ TARGET_RE = re.compile(r'(?P<indent>\s*)\w+\("(?P<target_name>\w+)"\) {'
 
 # SOURCES_RE matches a block of sources inside a GN target.
 SOURCES_RE = re.compile(
-    r'(sources|common_objc_headers) \+?= \[(?P<sources>.*?)\]',
+    r'(sources|public|common_objc_headers) \+?= \[(?P<sources>.*?)\]',
     re.MULTILINE | re.DOTALL)
 
 SOURCE_FILE_RE = re.compile(r'.*\"(?P<source_file>.*)\"')
diff --git a/tools_webrtc/presubmit_checks_lib/check_orphan_headers_test.py b/tools_webrtc/presubmit_checks_lib/check_orphan_headers_test.py
index 6587b8aa74..9acf25a517 100755
--- a/tools_webrtc/presubmit_checks_lib/check_orphan_headers_test.py
+++ b/tools_webrtc/presubmit_checks_lib/check_orphan_headers_test.py
@@ -92,6 +92,10 @@ class GetHeadersInBuildGnFileSourcesTest(unittest.TestCase):
       deps = [":bar"]
     }
     rtc_static_library("bar") {
+      # Public headers should also be included.
+      public = [
+        "public_foo.h",
+      ]
       sources = [
         "bar.h",
         "bar.cc",
@@ -107,6 +111,7 @@ class GetHeadersInBuildGnFileSourcesTest(unittest.TestCase):
       set([
         _GetPath('a', 'b', 'foo.h'),
         _GetPath('a', 'b', 'bar.h'),
+        _GetPath('a', 'b', 'public_foo.h'),
         _GetPath('a', 'b', 'baz', 'foo.h'),
       ]),
       check_orphan_headers.GetHeadersInBuildGnFileSources(file_content,