diff --git a/grub204.spec b/grub204.spec
index febbbad..9b8c274 100644
--- a/grub204.spec
+++ b/grub204.spec
@@ -4,7 +4,7 @@
 Name:          grub204
 Epoch:         2
 Version:       2.04
-Release:       9mamba
+Release:       10mamba
 Summary:       A Multiboot boot loader derived from GRUB, the GRand Unified Bootloader
 Group:         System/Kernel and Hardware
 Vendor:        openmamba
@@ -59,8 +59,8 @@ Requires:      vbetest
 %ifarch %{ix86}
 Provides:      grub.i586
 Obsoletes:     grub.i586 <= 2:99
-Provides:      grub2
-Obsoletes:     grub2 < 2:2.04-7mamba
+Provides:      grub2.i586
+Obsoletes:     grub2.i586 < 2:2.04-7mamba
 %endif
 Requires(post):%{__install_info}
 Requires:      os-prober >= 1.62-2mamba
@@ -80,15 +80,14 @@ This package contains the startfield theme provided with %{name}.
 %package efi
 Summary:      GRUB Multiboot boot loader build for EFI
 Group:        System/Kernel and Hardware
-Requires:     %{name} = %{?epoch:%epoch:}%{version}-%{release}
 %ifnarch aarch64
 Requires:     efibootmgr
 %endif
 %ifarch %{ix86}
-Provides:     grub-efi.i586
-Obsoletes:    grub-efi.i586 <= 99
-Provides:     grub2-efi
-Obsoletes:    grub2-efi < 2:2.04-7mamba
+Provides:     grub-efi
+Obsoletes:    grub-efi <= 99
+Provides:     grub2-efi.i586
+Obsoletes:    grub2-efi.i586 < 2:2.04-7mamba
 %endif
 
 %description efi
@@ -397,6 +396,9 @@ fi
 %endif
 
 %changelog
+* Sat Apr 22 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 2.04-10mamba
+- grub204-efi: obsolete grub-efi  instead of grub-efi.i586
+
 * Sat Apr 22 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 2.04-9mamba
 - try obsoleting grub.i586 instead of grub