diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 9257707fb16..d1459db03ce 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -421,7 +421,7 @@ rec {
 
     doCheck = false;
 
-    buildInputs = [ pkgs.liblapack pkgs.blas /* pkgs.gfortran */ ];
+    buildInputs = [ pkgs.liblapack pkgs.blas pkgs.gfortran ];
 
     # The build should be run as follows:
     #