diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 964c7e85..c4a87681 100755
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -3217,6 +3217,8 @@ Perl:
   - ".pod"
   - ".psgi"
   - ".t"
+  filenames:
+  - cpanfile
   interpreters:
   - perl
   language_id: 282
diff --git a/samples/Perl/filenames/cpanfile b/samples/Perl/filenames/cpanfile
new file mode 100644
index 00000000..dea1043f
--- /dev/null
+++ b/samples/Perl/filenames/cpanfile
@@ -0,0 +1,11 @@
+requires 'perl', '5.008001';
+
+requires 'JSON';
+requires 'Path::Class', 0.26;
+requires 'WebService::Dropbox', 2.06;
+requires 'DateTime::Format::Strptime';
+requires 'Encode::Locale';
+
+if ($^O eq 'darwin') {
+	requires 'Encode::UTF8Mac';
+}