--- a/docs/doxygen/Doxyfile.in
+++ b/docs/doxygen/Doxyfile.in
@@ -1973,7 +1973,7 @@
 # DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note
 # that the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
 
-DOT_GRAPH_MAX_NODES    = 50
+DOT_GRAPH_MAX_NODES    = 600
 
 # The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the
 # graphs generated by dot. A depth value of 3 means that only nodes reachable
