diff --git a/SOURCES/sbsigntools-gnuefi.patch b/SOURCES/sbsigntools-gnuefi.patch
index 2e28883..175950c 100644
--- a/SOURCES/sbsigntools-gnuefi.patch
+++ b/SOURCES/sbsigntools-gnuefi.patch
@@ -7,8 +7,8 @@ diff -up sbsigntools-0.9.3/configure.ac.gnu-efi sbsigntools-0.9.3/configure.ac
  dnl gnu-efi headers require extra include dirs
 -EFI_ARCH=$(uname -m | sed 's/i.86/ia32/;s/arm.*/arm/')
 -AM_CONDITIONAL(TEST_BINARY_FORMAT, [ test "$EFI_ARCH" = "arm" -o "$EFI_ARCH" = "aarch64" ])
-+EFI_ARCH=$(uname -m | sed -e 's/i.86/ia32/;s/arm.*/arm/' -e 's/x86_64/x64/' -e 's/aarch64/aa64/')
-+AM_CONDITIONAL(TEST_BINARY_FORMAT, [ test "$EFI_ARCH" = "arm" -o "$EFI_ARCH" = "aa64" ])
++EFI_ARCH=$(uname -m | sed 's/i.86/ia32/;s/arm.*/arm/')
++AM_CONDITIONAL(TEST_BINARY_FORMAT, [ test "$EFI_ARCH" = "arm" -o "$EFI_ARCH" = "aarch64" ])
  
  ##
  # no consistent view of where gnu-efi should dump the efi stuff, so find it