diff --git a/src/lib/tvgCommon.h b/src/lib/tvgCommon.h
index c970b930..259492ba 100644
--- a/src/lib/tvgCommon.h
+++ b/src/lib/tvgCommon.h
@@ -48,7 +48,7 @@ using namespace tvg;
     #define TVG_FALLTHROUGH
 #endif
 
-#ifdef __clang__
+#if defined(__clang__) && !defined(__EMSCRIPTEN__)
     #define strncpy strncpy_s
     #define strdup _strdup
 #endif
diff --git a/src/savers/tvg/tvgTvgSaver.cpp b/src/savers/tvg/tvgTvgSaver.cpp
index 2be5b91f..b133aab0 100644
--- a/src/savers/tvg/tvgTvgSaver.cpp
+++ b/src/savers/tvg/tvgTvgSaver.cpp
@@ -33,7 +33,7 @@
 
 static FILE* _fopen(const char* filename, const char* mode)
 {
-#ifdef __clang__
+#if defined(__clang__) && !defined(__EMSCRIPTEN__)
     FILE *fp;
     auto err = fopen_s(&fp, filename, mode);
     if (err != 0) return nullptr;