diff --git a/science/openems/files/patch-CMakeLists.txt b/science/openems/files/patch-CMakeLists.txt
new file mode 100644
index 000000000000..bb72e06dcc40
--- /dev/null
+++ b/science/openems/files/patch-CMakeLists.txt
@@ -0,0 +1,11 @@
+--- CMakeLists.txt.orig	2021-10-01 11:36:55 UTC
++++ CMakeLists.txt
+@@ -157,7 +157,7 @@ elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "amd64")
+   set(ARCH "x86_64")
+ elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "AMD64")
+   set(ARCH "x86_64")
+-elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "ppc64")
++elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(ppc64.*|PPC64.*|powerpc64.*)")
+   set(ARCH "ppc64")
+ elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "ppc64le")
+   set(ARCH "ppc64")