diff --git a/libguestfs.spec b/libguestfs.spec
index 5eeb40f..85c0521 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -67,8 +67,7 @@
 %define guestfs_docdir %{_defaultdocdir}/%{name}
 #
 Name:           libguestfs
-%if "%{?_ignore_exclusive_arch}" != ""
-%else
+%if "%{?_ignore_exclusive_arch}" == ""
 ExclusiveArch:  %ix86 x86_64
 %endif
 BuildRequires:  libacl-devel