diff --git a/wolfssl/wolfcrypt/types.h b/wolfssl/wolfcrypt/types.h
index 08553b4b1..0da95c271 100644
--- a/wolfssl/wolfcrypt/types.h
+++ b/wolfssl/wolfcrypt/types.h
@@ -479,6 +479,7 @@
                        Windows 10, snprintf is no longer identical to
                        _snprintf. The snprintf function behavior is now
                        C99 standard compliant. */
+                    #include <stdio.h>
                     #define XSNPRINTF snprintf
                 #else
                     /* 4996 warning to use MS extensions e.g., _sprintf_s