Index: doc/CMakeLists.txt
--- doc/CMakeLists.txt.orig
+++ doc/CMakeLists.txt
@@ -1,4 +1,4 @@
-if(${CMAKE_SYSTEM_NAME} MATCHES "Linux|FreeBSD|Darwin" AND NOT BUILD_MACOS_BUNDLE)
-  install(FILES xmoto.6 DESTINATION share/man/man6 COMPONENT doc)
+if(${CMAKE_SYSTEM_NAME} MATCHES "Linux|FreeBSD|OpenBSD|Darwin" AND NOT BUILD_MACOS_BUNDLE)
+  install(FILES xmoto.6 DESTINATION ${CMAKE_INSTALL_PREFIX}/man/man6 COMPONENT doc)
 endif()
 
