diff --git a/pkgs/tools/graphics/graphviz/2.0.nix b/pkgs/tools/graphics/graphviz/2.0.nix
index 255ec2d536f..32cc283bc3c 100644
--- a/pkgs/tools/graphics/graphviz/2.0.nix
+++ b/pkgs/tools/graphics/graphviz/2.0.nix
@@ -26,6 +26,8 @@ stdenv.mkDerivation rec {
       "--with-jpeglibdir=${libjpeg.out}/lib"
       "--with-expatincludedir=${expat.dev}/include"
       "--with-expatlibdir=${expat.out}/lib"
+      "--with-ltdl-include=${libtool}/include"
+      "--with-ltdl-lib=${libtool.lib}/lib"
     ]
     ++ stdenv.lib.optional (xlibsWrapper == null) "--without-x";
 
diff --git a/pkgs/tools/graphics/graphviz/2.32.nix b/pkgs/tools/graphics/graphviz/2.32.nix
index 9c125433c3a..a09d60f788c 100644
--- a/pkgs/tools/graphics/graphviz/2.32.nix
+++ b/pkgs/tools/graphics/graphviz/2.32.nix
@@ -26,6 +26,8 @@ stdenv.mkDerivation rec {
       "--with-jpeglibdir=${libjpeg.out}/lib"
       "--with-expatincludedir=${expat.dev}/include"
       "--with-expatlibdir=${expat.out}/lib"
+      "--with-ltdl-include=${libtool}/include"
+      "--with-ltdl-lib=${libtool.lib}/lib"
       "--with-cgraph=no"
       "--with-sparse=no"
     ]