diff --git a/CMakeLists.txt b/CMakeLists.txt
index f758bd95..3808cbe1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ project(isle LANGUAGES CXX C VERSION 0.1)
 
 if (EMSCRIPTEN)
   add_compile_options(-pthread)
-  add_link_options(-sALLOW_MEMORY_GROWTH=1 -sMAXIMUM_MEMORY=2gb -sUSE_PTHREADS=1 -sPROXY_TO_PTHREAD=1 -sPTHREAD_POOL_SIZE_STRICT=0 -sFORCE_FILESYSTEM=1 -sWASMFS=1 -sEXIT_RUNTIME=1)
+  add_link_options(-sALLOW_MEMORY_GROWTH=1 -sMAXIMUM_MEMORY=2gb -sUSE_PTHREADS=1 -sPROXY_TO_PTHREAD=1 -sOFFSCREENCANVAS_SUPPORT=1 -sPTHREAD_POOL_SIZE_STRICT=0 -sFORCE_FILESYSTEM=1 -sWASMFS=1 -sEXIT_RUNTIME=1)
   set(SDL_PTHREADS ON CACHE BOOL "Enable SDL pthreads" FORCE)
 endif()
 
diff --git a/miniwin/CMakeLists.txt b/miniwin/CMakeLists.txt
index 851403cc..c2aa0bd6 100644
--- a/miniwin/CMakeLists.txt
+++ b/miniwin/CMakeLists.txt
@@ -45,11 +45,13 @@ else()
 endif()
 
 find_library(OPENGL_ES2_LIBRARY NAMES GLESv2)
-if(OPENGL_ES2_LIBRARY)
+if(EMSCRIPTEN OR OPENGL_ES2_LIBRARY)
   message(STATUS "Found OpenGL: enabling OpenGL ES 2.x renderer")
   target_sources(miniwin PRIVATE src/d3drm/backends/opengles2/renderer.cpp)
   target_compile_definitions(miniwin PRIVATE USE_OPENGLES2)
-  target_link_libraries(miniwin PRIVATE OpenGL::GL)
+  if(OPENGL_ES2_LIBRARY)
+    target_link_libraries(miniwin PRIVATE OpenGL::GL)
+  endif()
 else()
   message(STATUS "🧩 OpenGL ES 2.x support not enabled")
 endif()