diff --git a/CMakeLists.txt b/CMakeLists.txt
index 90b342d3..5da3ed73 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -114,10 +114,6 @@ string(TOLOWER ${PROJECT_NAME} projectname)
 set(OPENJPEG_INSTALL_SUBDIR "${projectname}-${OPENJPEG_VERSION_MAJOR}.${OPENJPEG_VERSION_MINOR}")
 
 if(BUILD_DOC)
-if(NOT OPENJPEG_INSTALL_MAN_DIR)
-  set(OPENJPEG_INSTALL_MAN_DIR "share/man/")
-endif()
-
 if(NOT OPENJPEG_INSTALL_DOC_DIR)
   set(OPENJPEG_INSTALL_DOC_DIR "share/doc/${OPENJPEG_INSTALL_SUBDIR}")
 endif()
diff --git a/src/bin/jp2/CMakeLists.txt b/src/bin/jp2/CMakeLists.txt
index e648b4b3..29b4dd20 100644
--- a/src/bin/jp2/CMakeLists.txt
+++ b/src/bin/jp2/CMakeLists.txt
@@ -83,6 +83,6 @@ install(
   FILES       ${OPENJPEG_SOURCE_DIR}/doc/man/man1/opj_compress.1
               ${OPENJPEG_SOURCE_DIR}/doc/man/man1/opj_decompress.1
               ${OPENJPEG_SOURCE_DIR}/doc/man/man1/opj_dump.1
-  DESTINATION ${OPENJPEG_INSTALL_MAN_DIR}/man1)
+  DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
 #
 endif()
diff --git a/src/lib/openjp2/CMakeLists.txt b/src/lib/openjp2/CMakeLists.txt
index cfb0651f..e65cb9d1 100644
--- a/src/lib/openjp2/CMakeLists.txt
+++ b/src/lib/openjp2/CMakeLists.txt
@@ -131,7 +131,7 @@ if(BUILD_DOC)
 # install man page of the library
 install(
   FILES       ${OPENJPEG_SOURCE_DIR}/doc/man/man3/libopenjp2.3
-  DESTINATION ${OPENJPEG_INSTALL_MAN_DIR}/man3)
+  DESTINATION ${CMAKE_INSTALL_MANDIR}/man3)
 endif()
 
 if(BUILD_LUTS_GENERATOR)
diff --git a/src/lib/openjp2/libopenjp2.pc.cmake.in b/src/lib/openjp2/libopenjp2.pc.cmake.in
index dfb78020..2acfd076 100644
--- a/src/lib/openjp2/libopenjp2.pc.cmake.in
+++ b/src/lib/openjp2/libopenjp2.pc.cmake.in
@@ -1,6 +1,6 @@
 prefix=@CMAKE_INSTALL_PREFIX@
 bindir=${prefix}/@CMAKE_INSTALL_BINDIR@
-mandir=${prefix}/@OPENJPEG_INSTALL_MAN_DIR@
+mandir=${prefix}/@CMAKE_INSTALL_MANDIR@
 docdir=${prefix}/@OPENJPEG_INSTALL_DOC_DIR@
 libdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
 includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@/@OPENJPEG_INSTALL_SUBDIR@
diff --git a/src/lib/openjpip/libopenjpip.pc.cmake.in b/src/lib/openjpip/libopenjpip.pc.cmake.in
index 5b41cc1d..807b569a 100644
--- a/src/lib/openjpip/libopenjpip.pc.cmake.in
+++ b/src/lib/openjpip/libopenjpip.pc.cmake.in
@@ -1,6 +1,6 @@
 prefix=@CMAKE_INSTALL_PREFIX@
 bindir=${prefix}/@CMAKE_INSTALL_BINDIR@
-mandir=${prefix}/@OPENJPEG_INSTALL_MAN_DIR@
+mandir=${prefix}/@CMAKE_INSTALL_MANDIR@
 docdir=${prefix}/@OPENJPEG_INSTALL_DOC_DIR@
 libdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
 includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@/@OPENJPEG_INSTALL_SUBDIR@