diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index e287dee655..e8fdc60b9b 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -13,7 +13,11 @@ if(SPHINX_FOUND)
     set(LATEX_LOGO          "${CMAKE_CURRENT_SOURCE_DIR}/logo-blue.pdf")
 
     configure_file("${CMAKE_CURRENT_SOURCE_DIR}/conf.py.in" conf.py @ONLY)
-    add_custom_target(doc DEPENDS doc-html doc-man COMMENT "Building documentation...")
+
+    add_custom_target(doc ALL DEPENDS doc-html doc-man COMMENT "Building documentation...")
+    install(DIRECTORY ${SPHINX_HTML_DIR} DESTINATION ${CMAKE_INSTALL_DOCDIR})
+    install(DIRECTORY ${SPHINX_MAN_DIR} DESTINATION ${CMAKE_INSTALL_MANDIR})
+
     if(PDFLATEX_FOUND)
         # if this still fails on Debian/Ubuntu, run
         # apt-get install texlive-latex-recommended texlive-latex-extra texlive-fonts-recommended
@@ -26,6 +30,7 @@ if(SPHINX_FOUND)
         add_custom_target(doc-pdf make -C ${SPHINX_PDF_DIR} all-pdf
 		                  DEPENDS doc-latex )
         add_dependencies(doc doc-pdf)
+	install(DIRECTORY ${SPHINX_PDF_DIR} DESTINATION ${CMAKE_INSTALL_DOCDIR})
     endif(PDFLATEX_FOUND)
     if (EXISTS ${QT_QCOLLECTIONGENERATOR_EXECUTABLE})
         add_custom_target( doc-qch-sphinx ${SPHINX_EXECUTABLE}
@@ -37,6 +42,7 @@ if(SPHINX_FOUND)
 		                   ${SPHINX_QCH_DIR}/*.qhcp
 				   DEPENDS doc-qch-sphinx )
         add_dependencies(doc doc-qch)
+	install(DIRECTORY ${SPHINX_QCH_DIR} DESTINATION ${CMAKE_INSTALL_DOCDIR})
     endif()
     add_custom_target( doc-html ${SPHINX_EXECUTABLE}
 	                        -q -c . -b html