diff --git a/SOURCES/centos-ca-secureboot.der b/SOURCES/centos-ca-secureboot.der
new file mode 100644
index 0000000..44a2563
Binary files /dev/null and b/SOURCES/centos-ca-secureboot.der differ
diff --git a/SOURCES/centossecureboot001.der b/SOURCES/centossecureboot001.der
new file mode 100644
index 0000000..e8216b1
Binary files /dev/null and b/SOURCES/centossecureboot001.der differ
diff --git a/SOURCES/centossecureboot202.der b/SOURCES/centossecureboot202.der
new file mode 100644
index 0000000..ab8213c
Binary files /dev/null and b/SOURCES/centossecureboot202.der differ
diff --git a/SOURCES/centossecurebootca2.der b/SOURCES/centossecurebootca2.der
new file mode 100644
index 0000000..42bdfcf
Binary files /dev/null and b/SOURCES/centossecurebootca2.der differ
diff --git a/SOURCES/redhatsecureboot301.cer b/SOURCES/redhatsecureboot301.cer
deleted file mode 100644
index 4ff8b79..0000000
Binary files a/SOURCES/redhatsecureboot301.cer and /dev/null differ
diff --git a/SOURCES/redhatsecureboot502.cer b/SOURCES/redhatsecureboot502.cer
deleted file mode 100644
index be0b5e2..0000000
Binary files a/SOURCES/redhatsecureboot502.cer and /dev/null differ
diff --git a/SOURCES/redhatsecurebootca3.cer b/SOURCES/redhatsecurebootca3.cer
deleted file mode 100644
index b235400..0000000
Binary files a/SOURCES/redhatsecurebootca3.cer and /dev/null differ
diff --git a/SOURCES/redhatsecurebootca5.cer b/SOURCES/redhatsecurebootca5.cer
deleted file mode 100644
index dfb0284..0000000
Binary files a/SOURCES/redhatsecurebootca5.cer and /dev/null differ
diff --git a/SPECS/grub2.spec b/SPECS/grub2.spec
index 745f9dc..9757283 100644
--- a/SPECS/grub2.spec
+++ b/SPECS/grub2.spec
@@ -24,10 +24,10 @@ Source6:	gitignore
 Source8:	strtoull_test.c
 Source9:	20-grub.install
 Source12:	99-grub-mkconfig.install
-Source13:	redhatsecurebootca3.cer
-Source14:	redhatsecureboot301.cer
-Source15:	redhatsecurebootca5.cer
-Source16:	redhatsecureboot502.cer
+Source13:	centos-ca-secureboot.der
+Source14:	centossecureboot001.der
+Source15:	centossecurebootca2.der
+Source16:	centossecureboot202.der
 
 %include %{SOURCE1}
 
@@ -54,7 +54,11 @@ BuildRequires:	pesign >= 0.99-8
 BuildRequires:	ccache
 %endif
 
-ExcludeArch:	s390 s390x %{arm}
+%if 0%{?centos}
+%global efidir centos
+%endif
+
+ExcludeArch:	s390 s390x
 Obsoletes:	%{name} <= %{evr}
 
 %if 0%{with_legacy_arch}
@@ -166,10 +170,10 @@ git commit -m "After making subdirs"
 
 %build
 %if 0%{with_efi_arch}
-%{expand:%do_primary_efi_build %%{grubefiarch} %%{grubefiname} %%{grubeficdname} %%{_target_platform} %%{efi_target_cflags} %%{efi_host_cflags} %{SOURCE13} %{SOURCE14} redhatsecureboot301 %{SOURCE15} %{SOURCE16} redhatsecureboot502}
+%{expand:%do_primary_efi_build %%{grubefiarch} %%{grubefiname} %%{grubeficdname} %%{_target_platform} %%{efi_target_cflags} %%{efi_host_cflags} %{SOURCE13} %{SOURCE14} centossecureboot001 %{SOURCE15} %{SOURCE16} centossecureboot202}
 %endif
 %if 0%{with_alt_efi_arch}
-%{expand:%do_alt_efi_build %%{grubaltefiarch} %%{grubaltefiname} %%{grubalteficdname} %%{_alt_target_platform} %%{alt_efi_target_cflags} %%{alt_efi_host_cflags} %{SOURCE13} %{SOURCE14} redhatsecureboot301 %{SOURCE15} %{SOURCE16} redhatsecureboot502}
+%{expand:%do_alt_efi_build %%{grubaltefiarch} %%{grubaltefiname} %%{grubalteficdname} %%{_alt_target_platform} %%{alt_efi_target_cflags} %%{alt_efi_host_cflags} %{SOURCE13} %{SOURCE14} centossecureboot001 %{SOURCE15} %{SOURCE16} centossecureboot202}
 %endif
 %if 0%{with_legacy_arch}
 %{expand:%do_legacy_build %%{grublegacyarch}}