diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in
index 59818c4..6c670d8 100644
--- a/doc/Doxyfile.in
+++ b/doc/Doxyfile.in
@@ -1436,7 +1436,7 @@ CLASS_GRAPH            = YES
 # indirect implementation dependencies (inheritance, containment, and
 # class references variables) of the class with other documented classes.
 
-COLLABORATION_GRAPH    = YES
+COLLABORATION_GRAPH    = NO
 
 # If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen
 # will generate a graph for groups, showing the direct groups dependencies