diff --git a/library/entropy_poll.c b/library/entropy_poll.c
index dc62183..62fb4af 100644
--- a/library/entropy_poll.c
+++ b/library/entropy_poll.c
@@ -24,11 +24,7 @@
 #define _GNU_SOURCE
 #endif
 
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
+#include "common.h"
 
 #include <string.h>