diff --git a/src/Doc/BuildWebDoc.cfg.in b/src/Doc/BuildWebDoc.cfg.in
index 594ebef55099..0afb606c729b 100644
--- a/src/Doc/BuildWebDoc.cfg.in
+++ b/src/Doc/BuildWebDoc.cfg.in
@@ -1549,7 +1549,7 @@ PERL_PATH              = /usr/bin/perl
 # fallback. It is recommended to install and use dot, since it yields more
 # powerful graphs.
 
-CLASS_DIAGRAMS         = YES
+CLASS_DIAGRAMS         = NO
 
 # You can define message sequence charts within doxygen comments using the \msc
 # command. Doxygen will then run the mscgen tool (see
@@ -1571,7 +1571,7 @@ HIDE_UNDOC_RELATIONS   = NO
 # toolkit from AT&T and Lucent Bell Labs. The other options in this section
 # have no effect if this option is set to NO (the default)
 
-HAVE_DOT               = @HAVE_DOT@
+HAVE_DOT               = NO
 
 # The DOT_NUM_THREADS specifies the number of dot invocations doxygen is
 # allowed to run in parallel. When set to 0 (the default) doxygen will
diff --git a/src/Doc/CMakeLists.txt b/src/Doc/CMakeLists.txt
index 43c13fe32a62..59e9c572e43c 100644
--- a/src/Doc/CMakeLists.txt
+++ b/src/Doc/CMakeLists.txt
@@ -102,7 +102,6 @@ if(DOXYGEN_FOUND)
         )
         # lightweight version for the web
         ADD_CUSTOM_TARGET(WebDoc
-            SET(HAVE_DOT NO)
             ${CMAKE_COMMAND} -D BUILD_GUI:BOOL=ON -D BUILD_FEM:BOOL=ON ${CMAKE_SOURCE_DIR}
             COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_SOURCE_DIR}/src/Doc/templates ${CMAKE_CURRENT_BINARY_DIR}/templates
             COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/BuildWebDoc.cfg