diff --git a/megahit.rb b/megahit.rb
index 41d793cf36..c98f64ef0d 100644
--- a/megahit.rb
+++ b/megahit.rb
@@ -25,6 +25,8 @@ class Megahit < Formula
 
   needs :openmp
 
+  depends_on :python
+
   def install
     system "make"
     bin.install Dir["megahi*"]