diff --git a/library/ecp.c b/library/ecp.c
index 8ecf394..6101983 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -64,7 +64,7 @@
 #define mbedtls_free       free
 #endif
 
-#include "mbedtls/alt_internal/ecp_function_alt.h"
+#include "mbedtls/ecp_internal.h"
 
 #if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
     !defined(inline) && !defined(__cplusplus)