diff --git a/doc/Doxyfile b/doc/Doxyfile
index 1adb4b2671a97931a7359d32fb4c336f25bc5f61..32e1e20508189817a14a671d52716d7cfc8202d8 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -1047,7 +1047,7 @@ 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 UML_LOOK tag is set to YES doxygen will generate inheritance and 
 # collaboration diagrams in a style similiar to the OMG's Unified Modeling