diff --git a/examples/resolve_json_module/BUILD.bazel b/examples/resolve_json_module/BUILD.bazel
index 9a2b20d7..1b8c9eab 100644
--- a/examples/resolve_json_module/BUILD.bazel
+++ b/examples/resolve_json_module/BUILD.bazel
@@ -2,6 +2,7 @@
 
 load("@aspect_bazel_lib//lib:testing.bzl", "assert_contains")
 load("@aspect_rules_ts//ts:defs.bzl", "ts_project")
+load("@aspect_rules_js//js:defs.bzl", "js_test")
 
 ts_project(
     name = "ts",
@@ -17,3 +18,10 @@ assert_contains(
     actual = "index.js",
     expected = """JSON.stringify(data_json_1["default"])""",
 )
+
+js_test(
+    # Test that the json is available at runtime.
+    name = "ts-with-json",
+    data = [":ts"],
+    entry_point = "index.js",
+)
diff --git a/ts/private/ts_project.bzl b/ts/private/ts_project.bzl
index a51a216f..7f567c02 100644
--- a/ts/private/ts_project.bzl
+++ b/ts/private/ts_project.bzl
@@ -152,7 +152,23 @@ See https://github.com/aspect-build/rules_ts/issues/361 for more details.
             to_output_relative_path(ctx.outputs.buildinfo_out),
         ])
         outputs.append(ctx.outputs.buildinfo_out)
+
     output_sources = js_outs + map_outs + copy_files_to_bin_actions(ctx, ctx.files.assets)
+
+    # Add JS inputs that collide with outputs (see #250).
+    #
+    # Unfortunately this duplicates logic in ts_lib._out_paths:
+    # files collide iff the following conditions are met:
+    # - They are JS files (ext in [js, json])
+    # - out_dir == root_dir
+    #
+    # The duplication is hard to avoid, since out_paths works on path strings
+    # (so it also works in the macro), but we need Files here.
+    if ctx.attr.out_dir == ctx.attr.root_dir:
+        for s in srcs_inputs:
+            if _lib.is_js_src(s.path, ctx.attr.allow_js, ctx.attr.resolve_json_module):
+                output_sources.append(s)
+
     typings_srcs = [s for s in srcs_inputs if _lib.is_typings_src(s.path)]
 
     if len(js_outs) + len(typings_outs) < 1: