diff --git a/library/ccm.c b/library/ccm.c
index eaef106..25a627b 100644
--- a/library/ccm.c
+++ b/library/ccm.c
@@ -28,11 +28,7 @@
  * RFC 5116 "An Interface and Algorithms for Authenticated Encryption"
  */
 
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
+#include "common.h"
 
 #if defined(MBEDTLS_CCM_C)