diff --git a/pkgs/applications/networking/instant-messengers/amsn/builder.sh b/pkgs/applications/networking/instant-messengers/amsn/builder.sh
index 5c6bc0e49f68..8116c95e2a35 100644
--- a/pkgs/applications/networking/instant-messengers/amsn/builder.sh
+++ b/pkgs/applications/networking/instant-messengers/amsn/builder.sh
@@ -1,5 +1,5 @@
 source $stdenv/setup
 
-configureFlags="--with-tcl=$tcl/lib"
+configureFlags="--with-tcl=$tcl/lib --with-tk=$tk/lib"
 
 genericBuild
diff --git a/pkgs/applications/networking/instant-messengers/amsn/default.nix b/pkgs/applications/networking/instant-messengers/amsn/default.nix
index d18f37c18938..d69121e906d1 100644
--- a/pkgs/applications/networking/instant-messengers/amsn/default.nix
+++ b/pkgs/applications/networking/instant-messengers/amsn/default.nix
@@ -8,6 +8,6 @@ stdenv.mkDerivation {
     md5 = "1b90fdbb0a51c7646f4d2e6b22f18711";
   };
 
-  inherit tcl;
+  inherit tcl tk;
   buildInputs = [which tcl tk x11];
 }