diff --git a/nix.spec.in b/nix.spec.in
index 8b367eb554da0f8553a7df00a4153e2c17e320eb..0fe3fb64a85b1791455d5f775355588ee6ae09f6 100644
--- a/nix.spec.in
+++ b/nix.spec.in
@@ -19,7 +19,7 @@ Nix is a software deployment system.
 %setup -q
 
 %build
-./configure --prefix=%{_prefix} --with-system="i686-linux"
+./configure --prefix=%{_prefix}
 make
 make check