diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 47e56e8..48bc69c 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -10,6 +10,7 @@
 #ifndef MBEDTLS_SSL_MISC_H
 #define MBEDTLS_SSL_MISC_H
 
+#include "common.h"
 #include "mbedtls/build_info.h"
 
 #include "mbedtls/error.h"