diff --git a/include/mbedtls/bn_mul.h b/include/mbedtls/bn_mul.h
index c33bd8d..db03ba2 100644
--- a/include/mbedtls/bn_mul.h
+++ b/include/mbedtls/bn_mul.h
@@ -39,12 +39,12 @@
 #define MBEDTLS_BN_MUL_H
 
 #if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
+#include "mbedtls/config.h"
 #else
 #include MBEDTLS_CONFIG_FILE
 #endif
 
-#include "bignum.h"
+#include "mbedtls/bignum.h"
 
 #if defined(MBEDTLS_HAVE_ASM)