diff --git a/components/newlib/include/stdatomic.h b/components/newlib/include/stdatomic.h
index 09c0cf73e0..beba325b1a 100644
--- a/components/newlib/include/stdatomic.h
+++ b/components/newlib/include/stdatomic.h
@@ -32,6 +32,7 @@
 
 #include <sys/cdefs.h>
 #include <sys/_types.h>
+#include <stdint.h>
 
 #if __has_extension(c_atomic) || __has_extension(cxx_atomic)
 #define	__CLANG_ATOMICS