diff --git a/src/Functions/ya.make b/src/Functions/ya.make
index 774348c229b..69102056dcd 100644
--- a/src/Functions/ya.make
+++ b/src/Functions/ya.make
@@ -1,5 +1,9 @@
 LIBRARY()
 
+CFLAGS(
+    -DUSE_SSL -DUSE_XXHASH
+)
+
 ADDINCL(
     library/consistent_hashing
     contrib/libs/farmhash