diff --git a/thirdparty/stb_image/stb_image.h b/thirdparty/stb_image/stb_image.h
index accef4839c..43784617d4 100644
--- a/thirdparty/stb_image/stb_image.h
+++ b/thirdparty/stb_image/stb_image.h
@@ -336,6 +336,10 @@ RECENT REVISION HISTORY:
 //    default this is set to (1 << 24), which is 16777216, but that's still
 //    very big.
 
+#ifdef __TINYC__
+#define STBI_NO_SIMD
+#endif
+
 #ifndef STBI_NO_STDIO
 #include <stdio.h>
 #endif // STBI_NO_STDIO