diff --git a/library/havege.c b/library/havege.c
index d989115..3c6625c 100644
--- a/library/havege.c
+++ b/library/havege.c
@@ -241,7 +241,7 @@
         val  = hs->pool[hs->offset[0]++];
         val ^= hs->pool[hs->offset[1]++];
 
-        memcpy( p, &val, use_len );
+        mbedtls_platform_memcpy( p, &val, use_len );
 
         len -= use_len;
         p += use_len;