diff --git a/Xargo.toml b/Xargo.toml
index bd7ffe0..89ad4cd 100644
--- a/Xargo.toml
+++ b/Xargo.toml
@@ -2,4 +2,5 @@
 stage = 0
 
 [dependencies.compiler_builtins]
+features = ["mem"]
 stage = 1
\ No newline at end of file