diff --git a/library/base64.c b/library/base64.c
index 3e94548..ec19e1b 100644
--- a/library/base64.c
+++ b/library/base64.c
@@ -34,7 +34,7 @@
 #include <basetsd.h>
 typedef UINT32 uint32_t;
 #else
-#include <inttypes.h>
+#include <stdint.h>
 #endif
 
 #if defined(MBEDTLS_SELF_TEST)
diff --git a/library/net.c b/library/net.c
index e6dd5db..8dd4c09 100644
--- a/library/net.c
+++ b/library/net.c
@@ -83,7 +83,7 @@
 #include <basetsd.h>
 typedef UINT32 uint32_t;
 #else
-#include <inttypes.h>
+#include <stdint.h>
 #endif
 
 #if defined(MBEDTLS_PLATFORM_C)
diff --git a/library/ssl_cli.c b/library/ssl_cli.c
index 58ca440..e0ffbc6 100644
--- a/library/ssl_cli.c
+++ b/library/ssl_cli.c
@@ -46,7 +46,7 @@
 #include <basetsd.h>
 typedef UINT32 uint32_t;
 #else
-#include <inttypes.h>
+#include <stdint.h>
 #endif
 
 #if defined(MBEDTLS_HAVE_TIME)