diff --git a/rts/motoko-rts/src/tommath_bindings.rs b/rts/motoko-rts/src/tommath_bindings.rs
index 0719fbd42e3..e2fc5359a78 100644
--- a/rts/motoko-rts/src/tommath_bindings.rs
+++ b/rts/motoko-rts/src/tommath_bindings.rs
@@ -1 +1 @@
-include!(concat!("../../_build/tommath_bindings.rs"));
+include!("../../_build/tommath_bindings.rs");