diff --git a/acpica-tools.spec b/acpica-tools.spec
index 4d5d3ed..7b68ea8 100644
--- a/acpica-tools.spec
+++ b/acpica-tools.spec
@@ -32,6 +32,7 @@ Patch5:		template.patch
 Patch6:		free.patch
 Patch7:		ppc64le.patch
 Patch8:		arm7hl.patch
+Patch9:		big-endian-v2.patch
 
 BuildRequires:  bison patchutils flex
 
@@ -90,6 +91,7 @@ gzip -dc %{SOURCE1} | tar -x --strip-components=1 -f -
 %patch6 -p1 -b .free
 %patch7 -p1 -b .ppc64le
 %patch8 -p1 -b .arm7hl
+%patch9 -p1 -b .big-endian-v2
 
 cp -p %{SOURCE2} README.Fedora
 cp -p %{SOURCE3} iasl.1
diff --git a/big-endian-v2.patch b/big-endian-v2.patch
new file mode 100644
index 0000000..0c8831a
--- /dev/null
+++ b/big-endian-v2.patch
@@ -0,0 +1,18 @@
+Updated versions of upstream often contain fixes that were not seen
+in the original big-endian patch; we try to capture those here.
+
+Signed-off-by: Al Stone <ahs3@redhat.com>
+
+diff -Naur acpica-unix2-20170929.orig/source/compiler/asllookup.c acpica-unix2-20170929/source/compiler/asllookup.c
+--- acpica-unix2-20170929.orig/source/compiler/asllookup.c	2017-10-09 12:26:25.893508481 -0600
++++ acpica-unix2-20170929/source/compiler/asllookup.c	2017-10-17 11:45:42.230763844 -0600
+@@ -249,7 +249,8 @@
+      * ACPI names and are typically not referenced since they are meant
+      * to be called by the host OS.
+      */
+-    if (Node->Name.Ascii[0] == '_')
++    ACPI_MOVE_32_TO_32(&tmp.Ascii, Node->Name.Ascii);
++    if (tmp.Ascii[0] == '_')
+     {
+         return (AE_OK);
+     }