diff --git a/include/polarssl/md.h b/include/polarssl/md.h
index eecf781..424b89f 100644
--- a/include/polarssl/md.h
+++ b/include/polarssl/md.h
@@ -58,6 +58,7 @@
     POLARSSL_MD_SHA256,
     POLARSSL_MD_SHA384,
     POLARSSL_MD_SHA512,
+    POLARSSL_MD_RMD160,
 } md_type_t;
 
 #if defined(POLARSSL_SHA512_C)