diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index f6610b64..8842192f 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1222,6 +1222,13 @@ Visual Basic:
   - .vba
   - .vbs
 
+XC:
+  type: programming
+  lexer: C
+  primary_extension: .xc
+  extensions:
+  - .xc
+
 XML:
   type: markup
   ace_mode: xml
diff --git a/samples/XC/main.xc b/samples/XC/main.xc
new file mode 100644
index 00000000..6c6466c6
--- /dev/null
+++ b/samples/XC/main.xc
@@ -0,0 +1,10 @@
+int main()
+{
+  int x;
+  chan c;
+  par {
+    c <: 0;
+    c :> x;
+  }
+  return x;
+}