diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index c6fdc50..8945966 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -49,7 +49,8 @@ option(BUILD_WASI_SUPPORT "Build with WASI support" OFF)
 if (BUILD_WASI_SUPPORT)
     if (WASIENV)
         target_compile_definitions(m3 PUBLIC d_m3HasMetaWASI)
-    elseif (NOT EMSCRIPTEN)
+    elseif (EMSCRIPTEN OR EMSCRIPTEN_LIB)
+    else()
         target_compile_definitions(m3 PUBLIC d_m3HasWASI)
     endif()
 endif()