diff --git a/library/threading.c b/library/threading.c
index 7c90c7c..cb9026d 100644
--- a/library/threading.c
+++ b/library/threading.c
@@ -27,11 +27,7 @@
 #define _POSIX_C_SOURCE 200112L
 #endif
 
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
+#include "common.h"
 
 #if defined(MBEDTLS_THREADING_C)