diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -9,6 +9,7 @@
   @ONLY)
 
 IF(DOXYGEN_EXECUTABLE AND GHOSTSCRIPT_EXECUTABLE)
+  FILE(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/)
   IF(UNIX)
     ADD_CUSTOM_TARGET(html
       COMMAND rm -rf gen-images
@@ -34,9 +35,8 @@
       COMMAND ${DOXYGEN_EXECUTABLE} Doxyfile
       WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
   ENDIF(UNIX)
+  INSTALL(
+    DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/
+    DESTINATION doc
+    COMPONENT html_documentation)
 ENDIF(DOXYGEN_EXECUTABLE AND GHOSTSCRIPT_EXECUTABLE)
-
-INSTALL(
-  DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/
-  DESTINATION doc
-  COMPONENT html_documentation)