diff --git a/flexiblas.spec b/flexiblas.spec
index 70b6976..27a738b 100644
--- a/flexiblas.spec
+++ b/flexiblas.spec
@@ -8,6 +8,7 @@
 %else
 %global default_backend netlib
 %endif
+%global default_backend64 %{default_backend}64
 
 %global major_version 3
 %global minor_version 0
@@ -15,7 +16,7 @@
 
 Name:           flexiblas
 Version:        %{major_version}.%{minor_version}.%{patch_version}
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        A BLAS/LAPACK wrapper library with runtime exchangeable backends
 
 # GPLv3 except contributed/ and test/, which are BSD
@@ -133,7 +134,7 @@ threading support with a 32-integer interface.
 %package        netlib64
 Summary:        FlexiBLAS wrapper library (64-bit)
 Requires:       %{name}%{?_isa} = %{version}-%{release}
-Requires:       %{name}-%{default_backend}64%{?_isa} = %{version}-%{release}
+Requires:       %{name}-%{default_backend64}%{?_isa} = %{version}-%{release}
 
 %description    netlib64 %_description
 This package contains the wrapper library with 64-bit integer support.
@@ -232,7 +233,7 @@ rm -rf contributed
 echo "default = %{default_backend}" > %{buildroot}%{_sysconfdir}/%{name}rc
 %if 0%{?__isa_bits} == 64
 %make_install -C build64
-echo "default = %{default_backend}" > %{buildroot}%{_sysconfdir}/%{name}64rc
+echo "default = %{default_backend64}" > %{buildroot}%{_sysconfdir}/%{name}64rc
 %endif
 
 # remove dummy hook
@@ -249,7 +250,7 @@ rename OpenBLAS openblas %{buildroot}%{_sysconfdir}/%{name}*.d/* || true
 rename -- Serial -serial %{buildroot}%{_sysconfdir}/%{name}*.d/* || true
 rename -- OpenMP -openmp %{buildroot}%{_sysconfdir}/%{name}*.d/* || true
 rename -- PThread -threads %{buildroot}%{_sysconfdir}/%{name}*.d/* || true
-find %{buildroot}%{_sysconfdir} -type f \
+find %{buildroot}%{_sysconfdir}/%{name}*.d/* -type f \
     -exec sed -i 's NETLIB netlib gI' {} \;\
     -exec sed -i 's ATLAS atlas gI' {} \;\
     -exec sed -i 's Blis blis gI' {} \;\
@@ -387,6 +388,9 @@ make -C build test
 %endif
 
 %changelog
+* Wed Jul 01 2020 Iñaki Úcar <iucar@fedoraproject.org> - 3.0.0-4
+- Fix a bug setting the default backend
+
 * Wed Jul 01 2020 Iñaki Úcar <iucar@fedoraproject.org> - 3.0.0-3
 - Move man3 pages to devel subpackage
 - Remove dummy hook (only useful for FlexiBLAS development)