diff --git a/cmake/Platform/Emscripten.cmake b/cmake/Platform/Emscripten.cmake
index 160f2e51..93dfd202 100644
--- a/cmake/Platform/Emscripten.cmake
+++ b/cmake/Platform/Emscripten.cmake
@@ -10,7 +10,7 @@ set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS FALSE)
 
 # FIXME(emscripten): Suppress non-c-typedef-for-linkage warnings in solvespace.h
 add_compile_options(-Wno-non-c-typedef-for-linkage)
-
+add_link_options(-s EXPORTED_RUNTIME_METHODS=[allocate])
 
 # Enable optimization. Workaround for "too many locals" error when runs on browser.
 if(CMAKE_BUILD_TYPE STREQUAL Release)