diff --git a/pkgs/applications/science/math/gap/default.nix b/pkgs/applications/science/math/gap/default.nix
index 079051cc34d..a2432e9827c 100644
--- a/pkgs/applications/science/math/gap/default.nix
+++ b/pkgs/applications/science/math/gap/default.nix
@@ -3,6 +3,7 @@
 , fetchurl
 , fetchpatch
 , makeWrapper
+, readline
 , gmp
 # one of
 # - "minimal" (~400M):
@@ -75,6 +76,7 @@ stdenv.mkDerivation rec {
   configureFlags = [ "--with-gmp=system" ];
 
   buildInputs = [
+    readline
     gmp
   ];