diff --git a/thirdparty/stb_image/stb_image.h b/thirdparty/stb_image/stb_image.h
index a6202a31fb..64f2692211 100644
--- a/thirdparty/stb_image/stb_image.h
+++ b/thirdparty/stb_image/stb_image.h
@@ -315,6 +315,9 @@ RECENT REVISION HISTORY:
 //     want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB
 //
 
+#ifdef __TINYC__
+#define STBI_NO_SIMD
+#endif
 
 #ifndef STBI_NO_STDIO
 #include <stdio.h>