diff --git a/pkgs/tools/security/opensc/default.nix b/pkgs/tools/security/opensc/default.nix
index 917c70f29a0..8d9366bdc0f 100644
--- a/pkgs/tools/security/opensc/default.nix
+++ b/pkgs/tools/security/opensc/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, autoreconfHook, pkgconfig, zlib, readline, openssl
-, libiconv, pcsclite, libassuan1, libXt
+, libiconv, pcsclite, libassuan, libXt
 , docbook_xsl, libxslt, docbook_xml_dtd_412
 }:
 
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   '';
 
   buildInputs = [
-    autoreconfHook pkgconfig zlib readline openssl pcsclite libassuan1
+    autoreconfHook pkgconfig zlib readline openssl pcsclite libassuan
     libXt libxslt libiconv docbook_xml_dtd_412
   ];