diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index af074502..9a9b58e0 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -45,7 +45,7 @@ configure_file(${DOXYGEN_INPUT_DIR}/doc/header.html.in ${DOXYGEN_OUTPUT_DIR}/hea
 configure_file(${DOXYGEN_INPUT_DIR}/doc/doxygen.css ${DOXYGEN_OUTPUT_DIR}/html/doxygen.css COPYONLY)
 
 # target setup
-add_custom_target(doc ALL
+add_custom_target(doc
                   COMMAND ${CMAKE_COMMAND} -E echo_append "Building API Documentation..."
                   COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_CONFIGURED_INPUT}
                   COMMAND ${CMAKE_COMMAND} -E echo "Done."