diff --git a/pkgs/applications/editors/nano/default.nix b/pkgs/applications/editors/nano/default.nix
index 3e777207fd0..e7b96bd4b7d 100644
--- a/pkgs/applications/editors/nano/default.nix
+++ b/pkgs/applications/editors/nano/default.nix
@@ -23,6 +23,10 @@ stdenv.mkDerivation rec {
     ${optionalString enableTiny "--enable-tiny"}
   '';
 
+  postPatch = stdenv.lib.optionalString stdenv.isDarwin ''
+    substituteInPlace src/text.c --replace "__time_t" "time_t"
+  '';
+
   meta = {
     homepage = http://www.nano-editor.org/;
     description = "A small, user-friendly console text editor";