diff --git a/CMakeLists.txt b/CMakeLists.txt
index bee5736..e3eebb2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -107,6 +107,9 @@ add_subdirectory(tools/create_surfaces)
 ### Optional target for docs
 find_package(LATEX)
 find_package(Doxygen OPTIONAL_COMPONENTS dot)
-if(LATEX_FOUND AND DOXYGEN_FOUND AND DOXYGEN_DOT_FOUND)
+if(LATEX_FOUND AND DOXYGEN_FOUND AND NOT DOXYGEN_DOT_EXECUTABLE STREQUAL "")
+  message(STATUS "Documentation will be built.")
   add_subdirectory(DOC EXCLUDE_FROM_ALL)
+else()
+  message(STATUS "Documentation will not be built.")
 endif()