diff --git a/CMakeLists.txt b/CMakeLists.txt
index 89f8b145a..36bd7548d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -369,11 +369,11 @@ endif()
 
 # add a target to generate API documentation with Doxygen
 find_package(Doxygen)
-if(DOXYGEN_FOUND)
+if(DOXYGEN_FOUND AND DOXYGEN_DOT_FOUND)
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
 add_custom_target(doc
 ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
 WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
 COMMENT "Generating API documentation with Doxygen" VERBATIM
 )
-endif(DOXYGEN_FOUND)
+endif()