diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1ae475960..12c831d48 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -205,7 +205,6 @@ endif()
 find_package(Doxygen)
 if(DOXYGEN_FOUND)
   add_custom_target(docs
-    ALL
     COMMENT "Build public and internal documentation"
   )