diff --git a/ts/congrats/BUILD.bazel b/ts/congrats/BUILD.bazel
index e22b5cdcb..5d389a01e 100644
--- a/ts/congrats/BUILD.bazel
+++ b/ts/congrats/BUILD.bazel
@@ -36,7 +36,7 @@ esbuild(
     ],
     args = [
         "--global-name=anki",
-        "--inject:ts/protobuf-shim.js",
+        "--inject:$(location //ts:protobuf-shim.js)",
     ],
     entry_point = "index.ts",
     external = [
diff --git a/ts/graphs/BUILD.bazel b/ts/graphs/BUILD.bazel
index dca601f51..057b572d9 100644
--- a/ts/graphs/BUILD.bazel
+++ b/ts/graphs/BUILD.bazel
@@ -52,7 +52,7 @@ esbuild(
     ],
     args = [
         "--global-name=anki",
-        "--inject:ts/protobuf-shim.js",
+        "--inject:$(location //ts:protobuf-shim.js)",
     ],
     entry_point = "index.ts",
     external = [