diff --git a/TPL/matio/mpi.patch b/TPL/matio/mpi.patch
new file mode 100644
index 0000000000..9b799eeeee
--- /dev/null
+++ b/TPL/matio/mpi.patch
@@ -0,0 +1,23 @@
+From 126ed8b74e5c3118ca46222503d8cf350d8f1cb8 Mon Sep 17 00:00:00 2001
+From: Greg Sjaardema <gsjaardema@gmail.com>
+Date: Wed, 11 Jan 2023 13:27:50 -0700
+Subject: [PATCH] Fix mpi build
+
+---
+ cmake/thirdParties.cmake | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/cmake/thirdParties.cmake b/cmake/thirdParties.cmake
+index ae8b4ce..12246ec 100644
+--- a/cmake/thirdParties.cmake
++++ b/cmake/thirdParties.cmake
+@@ -1,3 +1,6 @@
++include(CMakeFindDependencyMacro)
++find_dependency(MPI)
++
+ if(MATIO_USE_CONAN AND (MATIO_WITH_HDF5 OR MATIO_WITH_ZLIB))
+     conan_add_remote(NAME conan-center URL https://center.conan.io VERIFY_SSL False)
+ endif()
+-- 
+2.38.1
+
diff --git a/TPL/matio/runcmake.sh b/TPL/matio/runcmake.sh
index 95e59d2ad9..58b8ce61e7 100755
--- a/TPL/matio/runcmake.sh
+++ b/TPL/matio/runcmake.sh
@@ -2,7 +2,7 @@
 
 ### The following assumes you are building in a subdirectory of ACCESS Root
 if [ "X$ACCESS" == "X" ] ; then
-  ACCESS=$(cd ../../..; pwd)
+  ACCESS=$(cd ../../../..; pwd)
   echo "ACCESS set to ${ACCESS}"
 fi
 INSTALL_PATH=${INSTALL_PATH:-${ACCESS}}
@@ -39,6 +39,13 @@ then
    LOCAL_ZLIB="-DZLIB_INCLUDE_DIR:PATH=${INSTALL_PATH}/include -DZLIB_LIBRARY:FILEPATH=${INSTALL_PATH}/lib/libz.${LD_EXT}"
 fi
 
+if [ "$MPI" == "YES" ]
+then
+    cd ..
+    git am ../mpi.patch
+    cd -
+fi
+
 rm -f config.cache
 
 cmake .. -DCMAKE_C_COMPILER:FILEPATH=${CC} \