diff --git a/library/ecp.c b/library/ecp.c
index 2d80b6f..1dff392 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -166,7 +166,7 @@
     unsigned char secret_bytes[MBEDTLS_ECP_MAX_BYTES];
     /* The list starts with strong hashes */
     const mbedtls_md_type_t md_type =
-        (const mbedtls_md_type_t) (mbedtls_md_list()[0]);
+        (mbedtls_md_type_t) (mbedtls_md_list()[0]);
     const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type(md_type);
 
     if (secret_len > MBEDTLS_ECP_MAX_BYTES) {