diff --git a/Eigen/src/Geometry/CMakeLists.txt b/Eigen/src/Geometry/CMakeLists.txt
index 6b75268c0..f8f728b84 100644
--- a/Eigen/src/Geometry/CMakeLists.txt
+++ b/Eigen/src/Geometry/CMakeLists.txt
@@ -4,3 +4,5 @@ INSTALL(FILES
   ${Eigen_Geometry_SRCS}
   DESTINATION ${INCLUDE_INSTALL_DIR}/Eigen/src/Geometry COMPONENT Devel
   )
+
+ADD_SUBDIRECTORY(arch)
diff --git a/Eigen/src/Geometry/arch/CMakeLists.txt b/Eigen/src/Geometry/arch/CMakeLists.txt
new file mode 100644
index 000000000..1267a79c7
--- /dev/null
+++ b/Eigen/src/Geometry/arch/CMakeLists.txt
@@ -0,0 +1,6 @@
+FILE(GLOB Eigen_Geometry_arch_SRCS "*.h")
+
+INSTALL(FILES
+  ${Eigen_Geometry_arch_SRCS}
+  DESTINATION ${INCLUDE_INSTALL_DIR}/Eigen/src/Geometry/arch COMPONENT Devel
+  )