diff --git a/os/emscripten/cmake/Findnlohmann_json.cmake b/os/emscripten/cmake/Findnlohmann_json.cmake
index 7e863a7cf8..8a1c075ad0 100644
--- a/os/emscripten/cmake/Findnlohmann_json.cmake
+++ b/os/emscripten/cmake/Findnlohmann_json.cmake
@@ -15,6 +15,7 @@ if (nlohmann_json_FOUND)
                 INTERFACE_COMPILE_OPTIONS "-sUSE_NLOHMANN_JSON=1"
                 INTERFACE_LINK_LIBRARIES "-sUSE_NLOHMANN_JSON=1"
         )
+        set(nlohmann_json_LIBRARY "nlohmann_json")
 else()
         message(WARNING "You are using an emscripten SDK without nlohmann-json support. Please apply 'emsdk-nlohmann_json.patch' to your local emsdk installation.")
 endif()