diff --git a/vtk.spec b/vtk.spec
index 032e698..12166f5 100644
--- a/vtk.spec
+++ b/vtk.spec
@@ -27,7 +27,7 @@ Patch5: vtk-5.6.1-system.patch
 URL: http://vtk.org/
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
 
-%if (0%{?rhel} <= 6)
+%if 0%{?rhel} && (0%{?rhel} <= 6)
 BuildRequires:	cmake28
 %else
 BuildRequires: cmake