diff --git a/rust.spec b/rust.spec
index 4105579..33e81cf 100644
--- a/rust.spec
+++ b/rust.spec
@@ -37,7 +37,7 @@
 %endif
 %global rust_triple %{_arch}-unknown-linux-%{abi}
 # to bootstrap, change to bcond_without
-%bcond_without bootstrap
+%bcond_with bootstrap
 Name:           rust
 Version:        1.15.0
 Release:        0
@@ -79,7 +79,7 @@ BuildRequires:  rustc-bootstrap >= %{prev_version}
         %else
         %if %{without bootstrap}
 BuildRequires:  cargo
-BuildRequires:  rust <= %{version}
+BuildRequires:  rust <= %{prev_version}
 BuildRequires:  rust >= %{prev_version}
         %endif
     %endif