diff --git a/BUILD.bazel b/BUILD.bazel
index db59095cd..988964e66 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -77,6 +77,7 @@ cc_library(
     name = "singleheader-json",
     hdrs = [
         "single_include/nlohmann/json.hpp",
+        "single_include/nlohmann/json_fwd.hpp",
     ],
     includes = ["single_include"],
     visibility = ["//visibility:public"],
diff --git a/cmake/scripts/gen_bazel_build_file.cmake b/cmake/scripts/gen_bazel_build_file.cmake
index a781a2e3f..ca5069cb0 100644
--- a/cmake/scripts/gen_bazel_build_file.cmake
+++ b/cmake/scripts/gen_bazel_build_file.cmake
@@ -48,6 +48,7 @@ cc_library(
     name = "singleheader-json",
     hdrs = [
         "single_include/nlohmann/json.hpp",
+        "single_include/nlohmann/json_fwd.hpp",
     ],
     includes = ["single_include"],
     visibility = ["//visibility:public"],