diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 7320deb9a..b64170836 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -140,7 +140,7 @@ html_document(
   HTML user_guide
   SOURCE user_guide/wsjtx-main.adoc
   ASCIIDOC_OPTIONS -a data-uri -a toc2 -a max-width=1024px --conf-file=${CMAKE_CURRENT_BINARY_DIR}/wsjtx.conf --backend=xhtml11 --theme wsjt
-  DEPENDS ${common_SRCS} ${UG_SRCS} ${UG_IMGS} wsjtx.conf.in theme/wsjt/wsjt.css
+  DEPENDS ${common_SRCS} ${UG_SRCS} ${UG_IMGS} ${CMAKE_CURRENT_BINARY_DIR}/wsjtx.conf theme/wsjt/wsjt.css
   )
 add_custom_target (docs ALL DEPENDS ${user_guide})