diff --git a/include/polarssl/md_wrap.h b/include/polarssl/md_wrap.h
index 46849d0..a41c875 100644
--- a/include/polarssl/md_wrap.h
+++ b/include/polarssl/md_wrap.h
@@ -48,11 +48,11 @@
 #if defined(POLARSSL_SHA1_C)
 extern const md_info_t sha1_info;
 #endif
-#if defined(POLARSSL_SHA2_C)
+#if defined(POLARSSL_SHA256_C)
 extern const md_info_t sha224_info;
 extern const md_info_t sha256_info;
 #endif
-#if defined(POLARSSL_SHA4_C)
+#if defined(POLARSSL_SHA512_C)
 extern const md_info_t sha384_info;
 extern const md_info_t sha512_info;
 #endif