diff --git a/pkgs/development/libraries/apr-util/default.nix b/pkgs/development/libraries/apr-util/default.nix
index 229529f08ce..1dc4b1d77ba 100644
--- a/pkgs/development/libraries/apr-util/default.nix
+++ b/pkgs/development/libraries/apr-util/default.nix
@@ -2,6 +2,7 @@
 , sslSupport ? true, openssl
 , bdbSupport ? false, db
 , ldapSupport ? true, openldap
+, libiconvOrNull
 }:
 
 assert sslSupport -> openssl != null;
@@ -28,7 +29,7 @@ stdenv.mkDerivation rec {
     ${stdenv.lib.optionalString ldapSupport "--with-ldap"}
   '';
 
-  propagatedBuildInputs = [ makeWrapper apr expat ]
+  propagatedBuildInputs = [ makeWrapper apr expat libiconvOrNull ]
     ++ optional sslSupport openssl
     ++ optional bdbSupport db
     ++ optional ldapSupport openldap;