diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index dc1887614b..bd6fc8cd2e 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -16,6 +16,8 @@ if(SPHINX_FOUND)
 
     if(CREATEDOC)
 	    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})
     else()
 	    add_custom_target(doc DEPENDS doc-html doc-man COMMENT "Building documentation...")
     endif()
@@ -32,7 +34,9 @@ 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})
+	if(CREATEDOC)
+		install(DIRECTORY ${SPHINX_PDF_DIR} DESTINATION ${CMAKE_INSTALL_DOCDIR})
+	endif()
     endif(PDFLATEX_FOUND)
     if (EXISTS ${QT_QCOLLECTIONGENERATOR_EXECUTABLE})
         add_custom_target( doc-qch-sphinx ${SPHINX_EXECUTABLE}
@@ -44,20 +48,20 @@ 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})
+	if(CREATEDOC)
+		install(DIRECTORY ${SPHINX_QCH_DIR} DESTINATION ${CMAKE_INSTALL_DOCDIR})
+	endif()
     endif()
     add_custom_target( doc-html ${SPHINX_EXECUTABLE}
 	                        -q -c . -b html
 				-d ${SPHINX_CACHE_DIR}
 				${CMAKE_CURRENT_SOURCE_DIR}
 				${SPHINX_HTML_DIR} )
-    install(DIRECTORY ${SPHINX_HTML_DIR} DESTINATION ${CMAKE_INSTALL_DOCDIR})
     add_custom_target( doc-man  ${SPHINX_EXECUTABLE}
 	                        -q -c . -b man
 				-d ${SPHINX_CACHE_DIR}
 				${CMAKE_CURRENT_SOURCE_DIR}
 				${SPHINX_MAN_DIR} )
-    install(DIRECTORY ${SPHINX_MAN_DIR} DESTINATION ${CMAKE_INSTALL_MANDIR})
     ## Building CHM files requires HTML Help Workshop. Since it requires wine
     ## with special dependencies, it's impossible to write a cmake check for it.
     ## This is why doc-chm is not a dependency for doc. Instead, run