diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5323edc..0784349 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -54,6 +54,7 @@ if (BUILD_DOCS)
 
     set (DOXYGEN_GENERATE_HTML YES)
     set (DOXYGEN_GENERATE_QHP YES)
+    set (DOXYGEN_EXTRACT_STATIC YES)
     set (DOXYGEN_OUTPUT_DIRECTORY "./docs/")
     set (DOXYGEN_EXCLUDE_SYMBOLS "*Private;*Test")
     set (DOXYGEN_QHG_LOCATION "qhelpgenerator")