diff --git a/rpmbuild/qcma.spec b/rpmbuild/qcma.spec
index 63885d9..13f59d4 100644
--- a/rpmbuild/qcma.spec
+++ b/rpmbuild/qcma.spec
@@ -10,7 +10,7 @@
 %define _verprefix v%{_version}
 %endif
 
-%if %{defined fedora}
+%if 0%{?fedora} || 0%{?rhel_version} || 0%{?centos_version}
 %define _qt5base qt5-qtbase
 %define _qt5imageformats qt5-qtimageformats
 %define _pkgconfig pkgconfig