diff --git a/toolchain/defs.bzl b/toolchain/defs.bzl
index 98a2941..5c1cb42 100644
--- a/toolchain/defs.bzl
+++ b/toolchain/defs.bzl
@@ -202,8 +202,6 @@ def zig_build_macro(absolute_path, zig_include_root):
             constraint_values = target_config.constraint_values,
         )
 
-        tool_srcs = {tool: [":zig"] for tool in ["gcc", "ld", "ar"]}
-
         cxx_builtin_include_directories = []
         for d in DEFAULT_INCLUDE_DIRECTORIES + target_config.includes:
             d = zig_include_root + d
@@ -218,7 +216,6 @@ def zig_build_macro(absolute_path, zig_include_root):
                 continue
             tool_path = ZIG_TOOL_PATH.format(zig_tool = path)
             absolute_tool_paths[name] = "%s/%s" % (absolute_path, tool_path)
-            tool_srcs[name].append(tool_path)
 
         zig_cc_toolchain_config(
             name = zigtarget + "_cc_toolchain_config",