diff --git a/lib/Interpreter/CMakeLists.txt b/lib/Interpreter/CMakeLists.txt
index eccfc39af..dcc024bca 100644
--- a/lib/Interpreter/CMakeLists.txt
+++ b/lib/Interpreter/CMakeLists.txt
@@ -129,6 +129,7 @@ if(EMSCRIPTEN)
   target_link_options(clangCppInterOp
     PRIVATE "SHELL: -s WASM_BIGINT"
     PRIVATE "SHELL: -s SIDE_MODULE=1"
+    PRIVATE "SHELL: -s STRICT=1"
     PRIVATE "SHELL: ${SYMBOLS_LIST}"
   )
   if (CPPINTEROP_ENABLE_TESTING)
diff --git a/unittests/CppInterOp/CMakeLists.txt b/unittests/CppInterOp/CMakeLists.txt
index 4cd66e5f2..8a293ce27 100644
--- a/unittests/CppInterOp/CMakeLists.txt
+++ b/unittests/CppInterOp/CMakeLists.txt
@@ -43,6 +43,7 @@ if(EMSCRIPTEN)
   # --preload-file ${SYSROOT_PATH}/include@/include:
   # Preloads the system include directory into the Emscripten virtual filesystem to make headers accessible at runtime.
   target_link_options(CppInterOpTests
+    PUBLIC "SHELL: -s STRICT=1"
     PUBLIC "SHELL: -fexceptions"
     PUBLIC "SHELL: -s MAIN_MODULE=1"
     PUBLIC "SHELL: -s WASM_BIGINT"
@@ -91,6 +92,7 @@ target_link_libraries(DynamicLibraryManagerTests
 if(EMSCRIPTEN)
   # Check explanation of Emscripten-specific link flags for CppInterOpTests above for DynamicLibraryManagerTests as well.
   target_link_options(DynamicLibraryManagerTests
+    PUBLIC "SHELL: -s STRICT=1"
     PUBLIC "SHELL: -s MAIN_MODULE=1"
     PUBLIC "SHELL: -s WASM_BIGINT"
     PUBLIC "SHELL: -s ALLOW_MEMORY_GROWTH=1"