diff --git a/pkgs/development/libraries/leatherman/default.nix b/pkgs/development/libraries/leatherman/default.nix
index 3dfc9e2990ec..a4b007fa399d 100644
--- a/pkgs/development/libraries/leatherman/default.nix
+++ b/pkgs/development/libraries/leatherman/default.nix
@@ -13,6 +13,10 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ boost cmake curl ];
 
+  # curl upgrade to 7.50.0 (#17152) broke the curl mock tests, disabling for now
+  # upstream bug raised https://tickets.puppetlabs.com/browse/LTH-108
+  cmakeFlags = [ "-DLEATHERMAN_MOCK_CURL=OFF" ];
+
   meta = with stdenv.lib; {
     homepage = https://github.com/puppetlabs/leatherman/;  
     description = "A collection of C++ and CMake utility libraries";