diff --git a/doc/doxygen/Doxyfile b/doc/doxygen/Doxyfile
index 189995b760..7f15c5af2d 100644
--- a/doc/doxygen/Doxyfile
+++ b/doc/doxygen/Doxyfile
@@ -2388,7 +2388,7 @@ DOT_FONTPATH           =
 # Possible values are: NO, YES, TEXT and GRAPH.
 # The default value is: YES.
 
-CLASS_GRAPH            = YES
+CLASS_GRAPH            = TEXT
 
 # If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
 # graph for each documented class showing the direct and indirect implementation