diff --git a/library/asn1parse.c b/library/asn1parse.c
index aac253b..ac3943a 100644
--- a/library/asn1parse.c
+++ b/library/asn1parse.c
@@ -337,7 +337,7 @@
                           int tag)
 {
     asn1_get_sequence_of_cb_ctx_t cb_ctx = { tag, cur };
-    memset( cur, 0, sizeof( mbedtls_asn1_sequence ) );
+    mbedtls_platform_memset( cur, 0, sizeof( mbedtls_asn1_sequence ) );
     return( mbedtls_asn1_traverse_sequence_of(
                 p, end, 0xFF, tag, 0, 0,
                 asn1_get_sequence_of_cb, &cb_ctx ) );
@@ -391,7 +391,7 @@
     int ret;
     mbedtls_asn1_buf params;
 
-    memset( &params, 0, sizeof(mbedtls_asn1_buf) );
+    mbedtls_platform_memset( &params, 0, sizeof(mbedtls_asn1_buf) );
 
     if( ( ret = mbedtls_asn1_get_alg( p, end, alg, &params ) ) != 0 )
         return( ret );