diff --git a/CMakeLists.txt b/CMakeLists.txt
index daaab74..57109ff 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,18 +1,20 @@
 cmake_minimum_required(VERSION 3.1)
 project(tetgen)
 
-option(BUILD_EXECUTABLE "Build tetgen executable" OFF)
+option(BUILD_EXECUTABLE "Build tetgen executable" ON)
 option(BUILD_LIBRARY    "Build libtetgen library" ON)
 
 if(BUILD_LIBRARY)
   add_library(tetgen STATIC tetgen.cxx predicates.cxx)
   target_compile_definitions(tetgen PRIVATE -DTETLIBRARY)
-  # Generate position independent code
   set_target_properties(tetgen PROPERTIES POSITION_INDEPENDENT_CODE ON)
 endif()
 
-
 if(BUILD_EXECUTABLE)
   add_executable(tetgen_exec tetgen.cxx predicates.cxx)
   set_target_properties(tetgen_exec PROPERTIES OUTPUT_NAME tetgen)
+  if(CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
+    set_target_properties(tetgen_exec PROPERTIES SUFFIX ".html")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s EXPORTED_RUNTIME_METHODS=['callMain'] -sSTACK_SIZE=131072 -s TOTAL_MEMORY=64MB")
+  endif()
 endif()