diff --git a/libguestfs.spec b/libguestfs.spec
index 39f1cde..cad825e 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -655,7 +655,7 @@ touch %{name}.lang
 
 # SLES has a different way to provide ntfs-3g feature.
 %if %suse_version == 1315
-%if 0%is_opensuse == 1
+%if 0%{?is_opensuse} == 1
 mkdir -p $RPM_BUILD_ROOT/tmp/etc/alternatives
 pushd $RPM_BUILD_ROOT/tmp/etc/alternatives
 ln -s /sbin/mount.ntfs-3g mount.ntfs