diff --git a/pkgs/tools/networking/mtr/default.nix b/pkgs/tools/networking/mtr/default.nix
index 7470c07d9377..45dcb087bd76 100644
--- a/pkgs/tools/networking/mtr/default.nix
+++ b/pkgs/tools/networking/mtr/default.nix
@@ -1,4 +1,4 @@
-x@{builderDefsPackage
+x@{builderDefsPackage, ncurses
   , ...}:
 builderDefsPackage
 (a :