diff --git a/man/CMakeLists.txt b/man/CMakeLists.txt
index 71bc502..ac424d2 100644
--- a/man/CMakeLists.txt
+++ b/man/CMakeLists.txt
@@ -2,11 +2,12 @@
 # Use of this source code is governed by a BSD-style
 # license that can be found in the LICENSE file.
 
+include(GNUInstallDirs)
+
 find_program(MANDOC_PATH mandoc)
 message(STATUS "MANDOC_PATH: ${MANDOC_PATH}")
 
 if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
-	find_program(GZIP_PATH gzip)
 	message(STATUS "GZIP_PATH: ${GZIP_PATH}")
 endif()
 
@@ -301,16 +302,16 @@ elseif(NOT MSVC)
 	foreach(f ${MAN_SOURCES})
 		if (${f} MATCHES ".1$")
 			install(FILES ${CMAKE_BINARY_DIR}/man/${f}
-				DESTINATION "${CMAKE_INSTALL_PREFIX}/man/man1")
+				DESTINATION "${CMAKE_INSTALL_MANDIR}/man1")
 		elseif(${f} MATCHES ".3$")
 			install(FILES ${CMAKE_BINARY_DIR}/man/${f}
-				DESTINATION "${CMAKE_INSTALL_PREFIX}/man/man3")
+				DESTINATION "${CMAKE_INSTALL_MANDIR}/man3")
 		endif()
 	endforeach()
 	foreach(i RANGE 0 ${MAN_ALIAS_MAX} 2)
 		math(EXPR j "${i} + 1")
 		list(GET MAN_ALIAS ${j} DST)
 		install(FILES ${CMAKE_BINARY_DIR}/man/${DST}.3
-			DESTINATION ${CMAKE_INSTALL_PREFIX}/man/man3)
+			DESTINATION ${CMAKE_INSTALL_MANDIR}/man3)
 	endforeach()
 endif()