diff --git a/library/md.c b/library/md.c
index 92fe3a4..d9d6509 100644
--- a/library/md.c
+++ b/library/md.c
@@ -387,7 +387,7 @@
 
 void mbedtls_md_init( mbedtls_md_context_t *ctx )
 {
-    mbedtls_platform_memset( ctx, 0, sizeof( mbedtls_md_context_t ) );
+    memset( ctx, 0, sizeof( mbedtls_md_context_t ) );
 
 #if defined(MBEDTLS_MD_SINGLE_HASH)
     mbedtls_md_info_init( mbedtls_md_get_handle( ctx ),