diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 0aedac44..c929cab0 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -970,6 +970,7 @@ Vala:
   type: programming
   extensions:
   - .vala
+  - .vapi
 
 Verilog:
   type: programming