diff --git a/grub2.changes b/grub2.changes
index d94ab3c..3e9405e 100644
--- a/grub2.changes
+++ b/grub2.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu Oct 30 15:18:16 CET 2014 - jdelvare@suse.de
+
+- grub2.spec: Fix conditional construct which wasn't supported by
+  older versions of rpmbuild (caused error message
+  "parseExpressionBoolean returns -1".)
+
 -------------------------------------------------------------------
 Thu Oct 30 07:36:15 UTC 2014 - mchang@suse.com
 
diff --git a/grub2.spec b/grub2.spec
index 2ee34c8..0b1b10d 100644
--- a/grub2.spec
+++ b/grub2.spec
@@ -79,7 +79,7 @@ BuildRequires:  xen-devel
 %define grubarch %{grubcpu}-%{platform}
 
 # build efi bootloader on some platforms only:
-%if ! 0%{?efi}
+%if ! 0%{?efi:1}
 %global efi %{ix86} x86_64 ia64 aarch64
 %endif
 %ifarch aarch64